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51. The GAPS Programme at TNG XXXIX. Multiple Molecular Species in the Atmosphere of the Warm Giant Planet WASP-80 b Unveiled at High Resolution with GIANO-B ∗

Author

Carleo, Ilaria, primary, Giacobbe, Paolo, additional, Guilluy, Gloria, additional, Cubillos, Patricio E., additional, Bonomo, Aldo S., additional, Sozzetti, Alessandro, additional, Brogi, Matteo, additional, Gandhi, Siddharth, additional, Fossati, Luca, additional, Turrini, Diego, additional, Biazzo, Katia, additional, Borsa, Francesco, additional, Lanza, Antonino F., additional, Malavolta, Luca, additional, Maggio, Antonio, additional, Mancini, Luigi, additional, Micela, Giusi, additional, Pino, Lorenzo, additional, Poretti, Ennio, additional, Rainer, Monica, additional, Scandariato, Gaetano, additional, Schisano, Eugenio, additional, Andreuzzi, Gloria, additional, Bignamini, Andrea, additional, Cosentino, Rosario, additional, Fiorenzano, Aldo, additional, Harutyunyan, Avet, additional, Molinari, Emilio, additional, Pedani, Marco, additional, Redfield, Seth, additional, and Stoev, Hristo, additional

Published
2022
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52. The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age

Author

Morales, Leslie M., primary, Sandquist, Eric L., additional, Schaefer, Gail H., additional, Farrington, Christopher D., additional, Klement, Robert, additional, Bedin, Luigi R., additional, Libralato, Mattia, additional, Malavolta, Luca, additional, Nardiello, Domenico, additional, Orosz, Jerome A., additional, Monnier, John D., additional, Kraus, Stefan, additional, Le Bouquin, Jean-Baptiste, additional, Anugu, Narsireddy, additional, ten Brummelaar, Theo, additional, Davies, Claire L., additional, Ennis, Jacob, additional, Gardner, Tyler, additional, and Lanthermann, Cyprien, additional

Published
2022
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53. K2 and Spitzer phase curves of the rocky ultra-short-period planet K2-141 b hint at a tenuous rock vapor atmosphere

Author

Zieba, Sebastian, Zilinskas, Mantas, Kreidberg, Laura, Nguyen, T. Giang, Miguel, Yamila, Cowan, Nicolas B., Pierrehumbert, Raymond, Carone, Ludmila, Dang, Lisa, Hammond, Mark, Louden, Tom, Lupu, Roxana, Malavolta, Luca, and Stevenson, Kevin B.

Subjects
Earth and Planetary Astrophysics (astro-ph.EP), Planets and satellites: individual: K2-141 b, Spitzer, planets and satellites: atmospheres, planets and satellites: individual: K2-141 b, techniques: photometric, Exoplanets, K2-141 b, lava planet, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Space and Planetary Science, atmospheres, Astrophysics::Solar and Stellar Astrophysics, Planets and satellites: atmospheres, Astrophysics::Earth and Planetary Astrophysics, Techniques: photometric, Astrophysics - Earth and Planetary Astrophysics
Abstract

K2-141 b is a transiting, small (1.5 Re) ultra-short-period (USP) planet discovered by Kepler orbiting a K-dwarf host star every 6.7 hours. The planet's high surface temperature makes it an excellent target for thermal emission observations. Here we present 65 hours of continuous photometric observations of K2-141 b collected with Spitzer's IRAC Channel 2 at 4.5 micron spanning 10 full orbits of the planet. We measure an infrared eclipse depth of 143 +/- 39 ppm and a peak to trough amplitude variation of 121 +/- 43 ppm. The best fit model to the Spitzer data shows no significant thermal hotspot offset, in contrast to the previously observed offset for the well-studied USP planet 55 Cnc e. We also jointly analyze the new Spitzer observations with the photometry collected by Kepler during two separate K2 campaigns. We model the planetary emission with a range of toy models that include a reflective and a thermal contribution. With a two-temperature model, we measure a dayside temperature of 2049 +/- 361 K and a night-side temperature that is consistent with zero (Tp,n < 1712 K at 2 sigma). Models with a steep dayside temperature gradient provide a better fit to the data than a uniform dayside temperature (DeltaBIC = 22.2). We also find evidence for a non-zero geometric albedo Ag = 0.28 +/- 0.07. We also compare the data to a physically motivated, pseudo-2D rock vapor model and a 1D turbulent boundary layer model. Both models fit the data well. Notably, we find that the optical eclipse depth can be explained by thermal emission from a hot inversion layer, rather than reflected light. A thermal inversion may also be responsible for the deep optical eclipse observed for another USP, Kepler-10 b. Finally, we significantly improve the ephemerides for K2-141 b and c, which will facilitate further follow-up observations of this interesting system with state-of-the-art observatories like JWST., 31 pages, 27 figures, 12 tables, accepted for publication in A&A

Published
2022

54. The PEPSI exoplanet transit survey (PETS) I: investigating the presence of a silicate atmosphere on the super-earth 55 Cnc e

Author

Keles, Engin, primary, Mallonn, Matthias, additional, Kitzmann, Daniel, additional, Poppenhaeger, Katja, additional, Hoeijmakers, H Jens, additional, Ilyin, Ilya, additional, Alexoudi, Xanthippi, additional, Carroll, Thorsten A, additional, Alvarado-Gomez, Julian, additional, Ketzer, Laura, additional, Bonomo, Aldo S, additional, Borsa, Francesco, additional, Gaudi, B Scott, additional, Henning, Thomas, additional, Malavolta, Luca, additional, Molaverdikhani, Karan, additional, Nascimbeni, Valerio, additional, Patience, Jennifer, additional, Pino, Lorenzo, additional, Scandariato, Gaetano, additional, Schlawin, Everett, additional, Shkolnik, Evgenya, additional, Sicilia, Daniela, additional, Sozzetti, Alessandro, additional, Foster, Mary G, additional, Veillet, Christian, additional, Wang, Ji, additional, Yan, Fei, additional, and Strassmeier, Klaus G, additional

Published
2022
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55. K2-79b and K2-222b: Mass Measurements of Two Small Exoplanets with Periods beyond 10 days that Overlap with Periodic Magnetic Activity Signals

Author

Nava, Chantanelle, primary, López-Morales, Mercedes, additional, Mortier, Annelies, additional, Zeng, Li, additional, Giles, Helen A. C., additional, Bieryla, Allyson, additional, Vanderburg, Andrew, additional, Buchhave, Lars A., additional, Poretti, Ennio, additional, Saar, Steven H., additional, Dumusque, Xavier, additional, Latham, David W., additional, Charbonneau, David, additional, Damasso, Mario, additional, Bonomo, Aldo S., additional, Lovis, Christophe, additional, Collier Cameron, Andrew, additional, Eastman, Jason D., additional, Sozzetti, Alessandro, additional, Cosentino, Rosario, additional, Pedani, Marco, additional, Pepe, Francesco, additional, Molinari, Emilio, additional, Sasselov, Dimitar, additional, Mayor, Michel, additional, Stalport, Manu, additional, Malavolta, Luca, additional, Rice, Ken, additional, Watson, Christopher A., additional, Martinez Fiorenzano, A. F., additional, and Di Fabrizio, Luca, additional

Published
2022
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56. A Machine Learning Inspired Method Reveals the Mass of K2-167 b

Author

de Beurs, Zoe L., Vanderburg, Andrew, Shallue, Christopher J., Rodriguez, Joseph E., Zieba, Sebastian, Mortier, Annelies, Buchhave, Lars, Malavolta, Luca, HARPS-N Telescope Collaboration, and Adams, Elisabeth R

Subjects
Machine Learning, Exoplanets, Stellar Activity, Radial Velocities, Astrophysics::Earth and Planetary Astrophysics
Abstract

We report precise radial velocity observations of HD 212657 (= K2-167), a star shown by K2 to host a transiting planet in a 9.97857 day orbit. Using observations from TESS, we refined planet parameters, especially the orbital period. We collected 76 precise radial velocity observations with the HARPS-N spectrograph between August 2015 and October 2016. Although this planet was first found using the transit method in 2015 and validated in 2018, stellar jitter originally limited our ability to measure its mass. In this work, we demonstrate that a new machine learning inspired method can successfully mitigate stellar jitter and reveal the mass of K2-167 b. In the future, these or similar techniques could be widely applied to solar-type (FGK) stars, help measure masses of planets from TESS to fulfill the level 1 science requirement, and eventually help detect habitable-zone Earth-mass exoplanets., {"references":["Dumusque, Xavier et al. (2014)","Haywood, Raphaelle. PhD Thesis (2015)","Vanderburg & Johnson (2014)","Vanderburg et al. (2016a)","Vanderburg et al. (2016b)","Mayo et al. (2018)","Shallue & Vanderburg (2018)","Cosentino et al. (2012)","Ikwut-Ukwa et al. (2020)","Akeson et al. (2013)"]}

Published
2021
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57. TESS, HARPS-N and CHEOPS: a joint effort to characterize the unexpected planetary system around TOI-561

Author

Lacedelli, Gaia, Malavolta, Luca, Borsato, Luca, Piotto, Giampaolo, Nardiello, Domenico, the HARPS-N Team, and the CHEOPS Team

Subjects
Exoplanets, Exoplanets detection and characterization, Radial Velocity, Transits, TOI-561
Abstract

Well-characterized multiplanetary systems offer a unique opportunity for comparative planetology, allowing for investigations of the formation and evolution processes. I will present the analysis of a new multiplanetary system, TOI-561, initially discovered by the TESS mission through photometric observations, and further characterized using high-precision RV data collected with the HARPS-N spectrograph, that allowed us to obtain precise masses for all the four planets in the system, namely an ultra-short period super-Earth and three mini-Neptunes (Lacedelli et al. 2021). I will show how in this case combining photometric and RV data has been essential to discriminate between various possible architectures, highlighting the importance of combining different techniques to obtain a better characterization of a planetary system. Additional insights on the planetary architecture and internal structure are coming from the ultra-high precision photometry of the CHEOPS satellite, which additionally stresses the importance of synergies between various techniques and instruments.

Published
2021
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58. Optical and Infrared Phase Curves of the Lava Planet K2-141 b

Author

Zieba, Sebastian, primary, Zilinskas, Mantas, additional, Kreidberg, Laura, additional, Cowan, Nicolas, additional, Nguyen, Giang, additional, Miguel, Yamila, additional, Pierrehumbert, Raymond, additional, Lupu, Roxana, additional, Dang, Lisa, additional, Hammond, Mark, additional, Malavolta, Luca, additional, and Carone, Ludmila, additional

Published
2021
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59. The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age.

Author

Morales, Leslie M., Sandquist, Eric L., Schaefer, Gail H., Farrington, Christopher D., Klement, Robert, Bedin, Luigi R., Libralato, Mattia, Malavolta, Luca, Nardiello, Domenico, Orosz, Jerome A., Monnier, John D., Kraus, Stefan, Le Bouquin, Jean-Baptiste, Anugu, Narsireddy, ten Brummelaar, Theo, Davies, Claire L., Ennis, Jacob, Gardner, Tyler, and Lanthermann, Cyprien

Published
2022
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60. Dynamical masses of two infant giant planets

Author

Mascareño, Alejandro Suárez, primary, Damasso, Mario, additional, Lodieu, Nicolas, additional, Sozzetti, Alessandro, additional, Béjar, Víctor, additional, Benatti, Serena, additional, Osorio, María Rosa Zapatero, additional, Micela, Giusi, additional, Rebolo, Rafael, additional, Desidera, Silvano, additional, Murgas, Felipe, additional, Claudi, Riccardo, additional, González-Hernández, Jonay, additional, Malavolta, Luca, additional, Burgo, Carlos del, additional, D'Orazi, Valentina, additional, Amado, Pedro, additional, Locci, Daniele, additional, Tabernero, Hugo, additional, Marzari, Francesco, additional, Aguado, David, additional, Turrini, Diego, additional, Guillén, Carlos Cardona, additional, Padrón, Borja Toledo, additional, Maggio, Antonio, additional, Aceituno, Jesús, additional, Bauer, Florian, additional, Caballero, Jose, additional, Chinchilla, Patricia, additional, Esparza-Borges, Emma, additional, González-Álvarez, Esther, additional, Granzer, Thomas, additional, Luque, Rafael, additional, Guerrero, Eduardo Martín, additional, Nowak, Grzegorz, additional, Oshagh, Mahmoudreza, additional, Pallé, Enric, additional, Parviainen, Hannu, additional, Quirrenbach, Andreas, additional, Reiners, Ansgar, additional, Ribas, Ignasi, additional, Strassmeier, Klaus, additional, and Weber, Michael, additional

Published
2021
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61. Five carbon- and nitrogen-bearing species in a hot giant planet’s atmosphere

Author

Giacobbe, Paolo, primary, Brogi, Matteo, additional, Gandhi, Siddharth, additional, Cubillos, Patricio E., additional, Bonomo, Aldo S., additional, Sozzetti, Alessandro, additional, Fossati, Luca, additional, Guilluy, Gloria, additional, Carleo, Ilaria, additional, Rainer, Monica, additional, Harutyunyan, Avet, additional, Borsa, Francesco, additional, Pino, Lorenzo, additional, Nascimbeni, Valerio, additional, Benatti, Serena, additional, Biazzo, Katia, additional, Bignamini, Andrea, additional, Chubb, Katy L., additional, Claudi, Riccardo, additional, Cosentino, Rosario, additional, Covino, Elvira, additional, Damasso, Mario, additional, Desidera, Silvano, additional, Fiorenzano, Aldo F. M., additional, Ghedina, Adriano, additional, Lanza, Antonino F., additional, Leto, Giuseppe, additional, Maggio, Antonio, additional, Malavolta, Luca, additional, Maldonado, Jesus, additional, Micela, Giuseppina, additional, Molinari, Emilio, additional, Pagano, Isabella, additional, Pedani, Marco, additional, Piotto, Giampaolo, additional, Poretti, Ennio, additional, Scandariato, Gaetano, additional, Yurchenko, Sergei N., additional, Fantinel, Daniela, additional, Galli, Alberto, additional, Lodi, Marcello, additional, Sanna, Nicoletta, additional, and Tozzi, Andrea, additional

Published
2021
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62. PEPSI exoplanet transit survey (PETS) I: investigating the presence of a silicate atmosphere on the super-earth 55 Cnc e.

Author

Keles, Engin, Mallonn, Matthias, Kitzmann, Daniel, Poppenhaeger, Katja, Hoeijmakers, H Jens, Ilyin, Ilya, Alexoudi, Xanthippi, Carroll, Thorsten A, Alvarado-Gomez, Julian, Ketzer, Laura, Bonomo, Aldo S, Borsa, Francesco, Gaudi, B Scott, Henning, Thomas, Malavolta, Luca, Molaverdikhani, Karan, Nascimbeni, Valerio, Patience, Jennifer, Pino, Lorenzo, and Scandariato, Gaetano

Subjects
ABSORPTION spectra, PLANETARY observations, NATURAL satellite atmospheres, ATMOSPHERE, ASTRONOMICAL transits
Abstract

The study of exoplanets and especially their atmospheres can reveal key insights on their evolution by identifying specific atmospheric species. For such atmospheric investigations, high-resolution transmission spectroscopy has shown great success, especially for Jupiter-type planets. Towards the atmospheric characterization of smaller planets, the super-Earth exoplanet 55 Cnc e is one of the most promising terrestrial exoplanets studied to date. Here, we present a high-resolution spectroscopic transit observation of this planet, acquired with the PEPSI instrument at the Large Binocular Telescope. Assuming the presence of Earth-like crust species on the surface of 55 Cnc e, from which a possible silicate-vapor atmosphere could have originated, we search in its transmission spectrum for absorption of various atomic and ionized species such as Fe , Fe +, Ca , Ca +, Mg, and K , among others. Not finding absorption for any of the investigated species, we are able to set absorption limits with a median value of 1.9 × RP. In conclusion, we do not find evidence of a widely extended silicate envelope on this super-Earth reaching several planetary radii. [ABSTRACT FROM AUTHOR]

Published
2022
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64. Neutral Iron Emission Lines from the Dayside of KELT-9b: The GAPS Program with HARPS-N at TNG XX

Author

Pino, Lorenzo, primary, Désert, Jean-Michel, additional, Brogi, Matteo, additional, Malavolta, Luca, additional, Wyttenbach, Aurélien, additional, Line, Michael, additional, Hoeijmakers, Jens, additional, Fossati, Luca, additional, Bonomo, Aldo Stefano, additional, Nascimbeni, Valerio, additional, Panwar, Vatsal, additional, Affer, Laura, additional, Benatti, Serena, additional, Biazzo, Katia, additional, Bignamini, Andrea, additional, Borsa, Franscesco, additional, Carleo, Ilaria, additional, Claudi, Riccardo, additional, Cosentino, Rosario, additional, Covino, Elvira, additional, Damasso, Mario, additional, Desidera, Silvano, additional, Giacobbe, Paolo, additional, Harutyunyan, Avet, additional, Lanza, Antonino Francesco, additional, Leto, Giuseppe, additional, Maggio, Antonio, additional, Maldonado, Jesus, additional, Mancini, Luigi, additional, Micela, Giuseppina, additional, Molinari, Emilio, additional, Pagano, Isabella, additional, Piotto, Giampaolo, additional, Poretti, Ennio, additional, Rainer, Monica, additional, Scandariato, Gaetano, additional, Sozzetti, Alessandro, additional, Allart, Romain, additional, Borsato, Luca, additional, Bruno, Giovanni, additional, Fabrizio, Luca Di, additional, Ehrenreich, David, additional, Fiorenzano, Aldo, additional, Frustagli, Giuseppe, additional, Lavie, Baptiste, additional, Lovis, Christophe, additional, Magazzù, Antonio, additional, Nardiello, Domenico, additional, Pedani, Marco, additional, and Smareglia, Riccardo, additional

Published
2020
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65. Using HARPS-N to characterize the long-period planets in the PH-2 and Kepler-103 systems

Author

Dubber, Sophie C, primary, Mortier, Annelies, additional, Rice, Ken, additional, Nava, Chantanelle, additional, Malavolta, Luca, additional, Giles, Helen, additional, Coffinet, Adrien, additional, Charbonneau, David, additional, Vanderburg, Andrew, additional, Bonomo, Aldo S, additional, Boschin, Walter, additional, Buchhave, Lars A, additional, Cameron, Andrew Collier, additional, Cosentino, Rosario, additional, Dumusque, Xavier, additional, Ghedina, Adriano, additional, Harutyunyan, Avet, additional, Haywood, Raphaëlle D, additional, Latham, David, additional, López-Morales, Mercedes, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Pepe, Francesco A, additional, Phillips, David, additional, Piotto, Giampaolo, additional, Poretti, Ennio, additional, Sasselov, Dimitar, additional, Sozzetti, Alessandro, additional, and Udry, Stéphane, additional

Published
2019
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66. An 11 Earth-mass, Long-period Sub-Neptune Orbiting a Sun-like Star

Author

Mayo, Andrew W., primary, Rajpaul, Vinesh M., additional, Buchhave, Lars A., additional, Dressing, Courtney D., additional, Mortier, Annelies, additional, Zeng, Li, additional, Fortenbach, Charles D., additional, Aigrain, Suzanne, additional, Bonomo, Aldo S., additional, Cameron, Andrew Collier, additional, Charbonneau, David, additional, Coffinet, Adrien, additional, Cosentino, Rosario, additional, Damasso, Mario, additional, Dumusque, Xavier, additional, Fiorenzano, A. F. Martinez, additional, Haywood, Raphaëlle D., additional, Latham, David W., additional, López-Morales, Mercedes, additional, Malavolta, Luca, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Pearce, Logan, additional, Pepe, Francesco, additional, Phillips, David, additional, Piotto, Giampaolo, additional, Poretti, Ennio, additional, Rice, Ken, additional, Sozzetti, Alessandro, additional, and Udry, Stephane, additional

Published
2019
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67. A giant impact as the likely origin of different twins in the Kepler-107 exoplanet system

Author

Bonomo, Aldo S., primary, Zeng, Li, additional, Damasso, Mario, additional, Leinhardt, Zoë M., additional, Justesen, Anders B., additional, Lopez, Eric, additional, Lund, Mikkel N., additional, Malavolta, Luca, additional, Silva Aguirre, Victor, additional, Buchhave, Lars A., additional, Corsaro, Enrico, additional, Denman, Thomas, additional, Lopez-Morales, Mercedes, additional, Mills, Sean M., additional, Mortier, Annelies, additional, Rice, Ken, additional, Sozzetti, Alessandro, additional, Vanderburg, Andrew, additional, Affer, Laura, additional, Arentoft, Torben, additional, Benbakoura, Mansour, additional, Bouchy, François, additional, Christensen-Dalsgaard, Jørgen, additional, Collier Cameron, Andrew, additional, Cosentino, Rosario, additional, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, García, Rafael A., additional, Handberg, Rasmus, additional, Harutyunyan, Avet, additional, Johnson, John A., additional, Kjeldsen, Hans, additional, Latham, David W., additional, Lovis, Christophe, additional, Lundkvist, Mia S., additional, Mathur, Savita, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Nava, Chantanelle, additional, Pepe, Francesco, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Poretti, Ennio, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Udry, Stéphane, additional, and Watson, Chris, additional

Published
2019
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68. GIANO-B online data reduction software at the TNG

Author

Harutyunyan, Avet, primary, Rainer, Monica, primary, Hernandez, Nauzet, primary, Oliva, Ernesto, primary, Guerra, Jose, primary, Lodi, Marcello, primary, San Juan Gómez, José, primary, Bignamini, Andrea, primary, Ghedina, Adriano, primary, Ghinassi Luschi, Francesca, primary, Molinari, Emilio, primary, Benatti, Serena, primary, Carleo, Ilaria, primary, Claudi, Riccardo U., primary, Micela, Giuseppina, primary, Tozzi, Andrea, primary, Baffa, Carlo, primary, Baruffolo, Andrea, primary, Biliotti, Valdemaro, primary, Buchschacher, Nicolas, primary, Cecconi, Massimo, primary, Cosentino, Rosario, primary, Falcini, Gilberto, primary, Fantinel, Daniela, primary, Fini, Luca, primary, Galli, Alberto, primary, Giani, Elisabetta, primary, Gonzalez, Carlos, primary, Gonzalez-Alvarez, Esther, primary, Gonzalez, Manuel, primary, Gratton, Raffaele, primary, Hernandez Diaz, Marcos, primary, Iuzzolino, Marcella, primary, Malavolta, Luca, primary, Maldonado, Jesus, primary, Origlia, Livia, primary, Poretti, Ennio, primary, Perez Ventura, Hector, primary, Puglisi, Alfio, primary, Riverol, Carlos, primary, Riverol, Luis, primary, Sanna, Nicoletta, primary, Scuderi, Salvatore, primary, Seeman, Ulf, primary, Sozzetti, Alessandro, primary, and Sozzi, Mauro, primary

Published
2018
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69. Introducing GOFIO: a DRS for the GIANO-B near-infrared spectrograph

Author

Harutyunyan, Avet, primary, Carleo, Ilaria, primary, Oliva, Ernesto, primary, Benatti, Serena, primary, Micela, Giuseppina, primary, Ghinassi Luschi, Francesca, primary, Iuzzolino, Marcella, primary, Lodi, Marcello, primary, Malavolta, Luca, primary, Maldonado, Jesus, primary, Origlia, Livia, primary, Puglisi, Alfio, primary, San Juan Gómez, José, primary, Scuderi, Salvatore, primary, Seeman, Ulf, primary, Sozzetti, Alessandro, primary, Sozzi, Mauro, primary, Pérez Ventura, Héctor, primary, Hernandez Diaz, Marcos, primary, Galli, Alberto, primary, Gonzalez, Carlos, primary, Riverol, Luis, primary, Riverol, Carlos, primary, Rainer, Monica, primary, Bignamini, Andrea, primary, Claudi, Riccardo U., primary, Gonzalez-Alvarez, Esther, primary, Sanna, Nicoletta, primary, Ghedina, Adriano, primary, Molinari, Emilio, primary, Tozzi, Andrea, primary, Baffa, Carlo, primary, Baruffolo, Andrea, primary, Buchschacher, Nicolas, primary, Cecconi, Massimo, primary, Cosentino, Rosario, primary, Falcini, Gilberto, primary, Fantinel, Daniela, primary, Fini, Luca, primary, Giani, Elisabetta, primary, Gonzalez, Manuel, primary, Guerra, Jose, primary, Hernandez, Nauzet, primary, and Gratton, Raffaele, primary

Published
2018
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70. GIARPS: commissioning and first scientific results

Author

Claudi, Riccardo U., primary, Benatti, Serena, primary, Carleo, Ilaria, primary, Ghedina, Adriano, primary, Guerra, Jose, primary, Ghinassi Luschi, Francesca, primary, Harutyunyan, Avet, primary, Micela, Giuseppina, primary, Molinari, Emilio, primary, Oliva, Ernesto, primary, Rainer, Monica, primary, Tozzi, Andrea, primary, Baffa, Carlo, primary, Baruffolo, Andrea, primary, Buchschacher, Nicolas, primary, Cecconi, Massimo, primary, Cosentino, Rosario, primary, Falcini, Gilberto, primary, Fantinel, Daniela, primary, Fini, Luca, primary, Giani, Elisabetta, primary, Gonzalez-Alvarez, Esther, primary, Gonzalez, Manuel, primary, Gratton, Raffaele, primary, Hernandez, Nauzet, primary, Iuzzolino, Marcella, primary, Lodi, Marcello, primary, Malavolta, Luca, primary, Maldonado, Jesus, primary, Origlia, Livia, primary, Puglisi, Alfio, primary, Sanna, Nicoletta, primary, San Juan Gómez, José, primary, Scuderi, Salvatore, primary, Seemann, Ulf, primary, Sozzetti, Alessandro, primary, Sozzi, Mauro, primary, Pérez Ventura, Héctor, primary, Hernandez Diaz, Marcos, primary, Galli, Alberto, primary, Gonzalez, Carlos, primary, Riverol, Luis, primary, Riverol, Carlos, primary, and Biliotti, V., primary

Published
2018
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71. An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope

Author

Haywood, Raphaëlle D., primary, Vanderburg, Andrew, additional, Mortier, Annelies, additional, Giles, Helen A. C., additional, López-Morales, Mercedes, additional, Lopez, Eric D., additional, Malavolta, Luca, additional, Charbonneau, David, additional, Cameron, Andrew Collier, additional, Coughlin, Jeffrey L., additional, Dressing, Courtney D., additional, Nava, Chantanelle, additional, Latham, David W., additional, Dumusque, Xavier, additional, Lovis, Christophe, additional, Molinari, Emilio, additional, Pepe, Francesco, additional, Sozzetti, Alessandro, additional, Udry, Stéphane, additional, Bouchy, François, additional, Johnson, John A., additional, Mayor, Michel, additional, Micela, Giusi, additional, Phillips, David, additional, Piotto, Giampaolo, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Watson, Chris, additional, Affer, Laura, additional, Bonomo, Aldo S., additional, Buchhave, Lars A., additional, Ciardi, David R., additional, Fiorenzano, Aldo F., additional, and Harutyunyan, and Avet, additional

Published
2018
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72. The K2 M67 Study: A Curiously Young Star in an Eclipsing Binary in an Old Open Cluster*

Author

Sandquist, Eric L., primary, Mathieu, Robert D., additional, Quinn, Samuel N., additional, Pollack, Maxwell L., additional, Latham, David W., additional, Brown, Timothy M., additional, Esselstein, Rebecca, additional, Aigrain, Suzanne, additional, Parviainen, Hannu, additional, Vanderburg, Andrew, additional, Stello, Dennis, additional, Somers, Garrett, additional, Pinsonneault, Marc H., additional, Tayar, Jamie, additional, Orosz, Jerome A., additional, Bedin, Luigi R., additional, Libralato, Mattia, additional, Malavolta, Luca, additional, and Nardiello, Domenico, additional

Published
2018
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73. An Ultra-short Period Rocky Super-Earth with a Secondary Eclipse and a Neptune-like Companion around K2-141

Author

Malavolta, Luca, primary, Mayo, Andrew W., additional, Louden, Tom, additional, Rajpaul, Vinesh M., additional, Bonomo, Aldo S., additional, Buchhave, Lars A., additional, Kreidberg, Laura, additional, Kristiansen, Martti H., additional, Lopez-Morales, Mercedes, additional, Mortier, Annelies, additional, Vanderburg, Andrew, additional, Coffinet, Adrien, additional, Ehrenreich, David, additional, Lovis, Christophe, additional, Bouchy, Francois, additional, Charbonneau, David, additional, Ciardi, David R., additional, Cameron, Andrew Collier, additional, Cosentino, Rosario, additional, Crossfield, Ian J. M., additional, Damasso, Mario, additional, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Everett, Mark E., additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Gonzales, Erica J., additional, Haywood, Raphaëlle D., additional, Harutyunyan, Avet, additional, Hirsch, Lea, additional, Howell, Steve B., additional, Johnson, John Asher, additional, Latham, David W., additional, Lopez, Eric, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Nascimbeni, Valerio, additional, Pepe, Francesco, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Udry, Stéphane, additional, and Watson, Chris, additional

Published
2018
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74. Precise Masses in the WASP-47 System

Author

Vanderburg, Andrew, primary, Becker, Juliette C., additional, Buchhave, Lars A., additional, Mortier, Annelies, additional, Lopez, Eric, additional, Malavolta, Luca, additional, Haywood, Raphaëlle D., additional, Latham, David W., additional, Charbonneau, David, additional, López-Morales, Mercedes, additional, Adams, Fred C., additional, Bonomo, Aldo Stefano, additional, Bouchy, François, additional, Cameron, Andrew Collier, additional, Cosentino, Rosario, additional, Fabrizio, Luca Di, additional, Dumusque, Xavier, additional, Fiorenzano, Aldo, additional, Harutyunyan, Avet, additional, Johnson, John Asher, additional, Lorenzi, Vania, additional, Lovis, Christophe, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Pedani, Marco, additional, Pepe, Francesco, additional, Piotto, Giampaolo, additional, Phillips, David, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Udry, Stéphane, additional, and Watson, Chris, additional

Published
2017
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75. The Kepler-19 System: A Thick-envelope Super-Earth with Two Neptune-mass Companions Characterized Using Radial Velocities and Transit Timing Variations

Author

Malavolta, Luca, primary, Borsato, Luca, additional, Granata, Valentina, additional, Piotto, Giampaolo, additional, Lopez, Eric, additional, Vanderburg, Andrew, additional, Figueira, Pedro, additional, Mortier, Annelies, additional, Nascimbeni, Valerio, additional, Affer, Laura, additional, Bonomo, Aldo S., additional, Bouchy, Francois, additional, Buchhave, Lars A., additional, Charbonneau, David, additional, Cameron, Andrew Collier, additional, Cosentino, Rosario, additional, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Fiorenzano, Aldo F. M., additional, Harutyunyan, Avet, additional, Haywood, Raphaëlle D., additional, Johnson, John Asher, additional, Latham, David W., additional, Lopez-Morales, Mercedes, additional, Lovis, Christophe, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Motalebi, Fatemeh, additional, Pepe, Francesco, additional, Phillips, David F., additional, Pollacco, Don, additional, Queloz, Didier, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Udry, Stéphane, additional, and Watson, Chris, additional

Published
2017
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76. KEPLER-21b: A ROCKY PLANET AROUND AV= 8.25 mag STAR

Author

López-Morales, Mercedes, primary, Haywood, Raphaëlle D., additional, Coughlin, Jeffrey L., additional, Zeng, Li, additional, Buchhave, Lars A., additional, Giles, Helen A. C., additional, Affer, Laura, additional, Bonomo, Aldo S., additional, Charbonneau, David, additional, Cameron, Andrew Collier, additional, Consentino, Rosario, additional, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Harutyunyan, Avet, additional, Johnson, John Asher, additional, Latham, David W., additional, Lopez, Eric D., additional, Lovis, Christophe, additional, Malavolta, Luca, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Mortier, Annelies, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Pepe, Francesco, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Pollacco, Don, additional, Queloz, Didier, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Segransan, Damien, additional, Sozzetti, Alessandro, additional, Udry, Stephane, additional, Vanderburg, Andrew, additional, and Watson, Chris, additional

Published
2016
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77. A 1.9 EARTH RADIUS ROCKY PLANET AND THE DISCOVERY OF A NON-TRANSITING PLANET IN THE KEPLER-20 SYSTEM

Author

Buchhave, Lars A., primary, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Rice, Ken, additional, Vanderburg, Andrew, additional, Mortier, Annelies, additional, Lopez-Morales, Mercedes, additional, Lopez, Eric, additional, Lundkvist, Mia S., additional, Kjeldsen, Hans, additional, Affer, Laura, additional, Bonomo, Aldo S., additional, Charbonneau, David, additional, Cameron, Andrew Collier, additional, Cosentino, Rosario, additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Harutyunyan, Avet, additional, Haywood, Raphaëlle D., additional, Johnson, John Asher, additional, Latham, David W., additional, Lovis, Christophe, additional, Malavolta, Luca, additional, Mayor, Michel, additional, Micela, Giusi, additional, Molinari, Emilio, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Pepe, Francesco, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Pollacco, Don, additional, Queloz, Didier, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Udry, Stéphane, additional, and Watson, Chris, additional

Published
2016
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78. TASTE IV. Refining ephemeris and orbital parameters for HAT-P-20b and WASP-1b

Author

Granata, Valentina, Nascimbeni, Valerio, Piotto, Giampaolo, Bedin, L. R., Borsato, Luca, Cunial, Andrea, Damasso, Mario, and Malavolta, Luca

Subjects
Earth and Planetary Astrophysics (astro-ph.EP), Astrophysics - Solar and Stellar Astrophysics, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics - Earth and Planetary Astrophysics
Abstract

We present four new light curves of transiting exoplanets WASP-1b and HAT-P-20b, observed within the TASTE (The Asiago Search for Transit timing variations of Exoplanets) project. We re-analyzed light curves from the literature in a homogeneous way, calculating a refined ephemeris and orbital-physical parameters for both objects. WASP-1b does not show any significant Transit Timing Variation signal at the 120 s-level. As for HAT-P-20b, we detected a deviation from our re-estimated linear ephemeris that could be ascribed to the presence of a perturber or, more probably, to a previously unnoticed high level of stellar activity. The rotational period of HAT-P-20 A we obtained from archival data (P_rot ~ 14.5 days), combined with its optical variability and strong emission of CaII H&K lines, is consistent with a young stellar age (< 1 Gyr) and support the hypothesis that stellar activity may be responsible of the measured deviations of the transit times., 7 pages, 4 figures, 3 tables, accepted to Astronomische Nachrichten

Published
2014
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79. Data reduction, radial velocities and stellar parameters from spectra in the very low signal-to-noise domain

Author

Malavolta, Luca

Subjects
HARPS, Settore FIS/05 - Astronomia e Astrofisica, FIS/05 Astronomia e astrofisica, sky subtraction, Astrophysics::Solar and Stellar Astrophysics, radial velocities, spectral extraction, GIRAFFE, HARPS, automatic normalization, sky subtraction, spectral extraction, Astrophysics::Earth and Planetary Astrophysics, GIRAFFE, automatic normalization, radial velocities, Astrophysics::Galaxy Astrophysics
Abstract

Large astronomical facilities usually provide data reduction pipeline designed to deliver ready-to-use scientific data, and too often as- tronomers are relying on this to avoid the most difficult part of an astronomer job Standard data reduction pipelines however are usu- ally designed and tested to have good performance on data with av- erage Signal to Noise Ratio (SNR) data, and the issues that are related with the reduction of data in the very low SNR domain are not taken int account properly. As a result, informations in data with low SNR are not optimally exploited. During the last decade our group has collected thousands of spec- tra using the GIRAFFE spectrograph at Very Large Telescope (Chile) of the European Southern Observatory (ESO) to determine the ge- ometrical distance and dynamical state of several Galactic Globular Clusters but ultimately the analysis has been hampered by system- atics in data reduction, calibration and radial velocity measurements. Moreover these data has never been exploited to get other informa- tions like temperature and metallicity of stars, because considered too noisy for these kind of analyses. In this thesis we focus our attention on data reduction and analysis of spectra with very low SNR. The dataset we analyze in this thesis comprises 7250 spectra for 2771 stars of the Globular Cluster M 4 (NGC 6121) in the wavelength region 5145 − 5360Å obtained with GIRAFFE. Stars from the upper Red Giant Branch down to the Main Sequence have been observed in very different conditions, including nights close to full moon, and reaching SNR ≃ 10 for many spectra in the dataset. We will first review the basic steps of data reduction and spec- tral extraction, adapting techniques well tested in other field (like photometry) but still under-developed in spectroscopy. We improve the wavelength dispersion solution and the correction of radial veloc- ity shift between day-time calibrations and science observations by following a completely different approach with respect to the ESO pipeline. We then analyze deeply the best way to perform sky sub- traction and continuum normalization, the most important sources respectively of noise and systematics in radial velocity determination and chemical analysis of spectra. The huge number of spectra of our dataset requires an automatic but robust approach, which we do not fail to provide. We finally determine radial velocities for the stars in the sample with unprecedented precision with respect to previous works with similar data and we recover the same stellar atmosphere parameters of other studies performed on the same cluster but on brighter stars, with higher spectral resolution and wavelength range ten times larger than our data. In the final chapter of the thesis we face a similar problem but from a completely different perspective. High resolution, high SNR data from the High Accuracy Radial Velocity Planet Searcher spectro- graph (HARPS) in La Silla (Chile) have been used to calibrate the at- mospheric stellar parameters as functions of the main characteristics of Cross-Correlation Functions, specifically built by including spec- tral lines with different sensitivity to stellar atmosphere parameters. These tools has been designed to be quick and to be easy to imple- ment in a instrument pipeline for a real-time determination, neverthe- less they provide accurate parameters even for lower SNR spectra.

Published
2013

80. The GAPS programme with HARPS-N at TNG

Author

Desidera, Silvano, Sozzetti, A., Bonomo, A. S., Gratton, R., Poretti, E., Claudi, Riccardo, Latham, D. W., Affer, L., Cosentino, R., Damasso, Mario, Esposito, M., Giacobbe, P., Malavolta, Luca, Nascimbeni, Valerio, Piotto, Giampaolo, Rainer, M., Scardia, M., Schmid, V. S., Lanza, A. F., Micela, G., Pagano, I., Bedin, Luigi, Biazzo, K., Borsa, F., Carolo, Elena, Covino, E., Faedi, F., Hébrard, G., Lovis, C., Maggio, A., Mancini, L., Marzari, Francesco, Messina, S., Molinari, E., Munari, Ulisse, Pepe, F., Santos, N., Scandariato, G., Shkolnik, E., and Southworth, J.

Published
2013

81. THE MASS OF Kepler-93b AND THE COMPOSITION OF TERRESTRIAL PLANETS

Author

Dressing, Courtney D., primary, Charbonneau, David, additional, Dumusque, Xavier, additional, Gettel, Sara, additional, Pepe, Francesco, additional, Collier Cameron, Andrew, additional, Latham, David W., additional, Molinari, Emilio, additional, Udry, Stéphane, additional, Affer, Laura, additional, Bonomo, Aldo S., additional, Buchhave, Lars A., additional, Cosentino, Rosario, additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Harutyunyan, Avet, additional, Haywood, Raphaëlle D., additional, Johnson, John Asher, additional, Lopez-Morales, Mercedes, additional, Lovis, Christophe, additional, Malavolta, Luca, additional, Mayor, Michel, additional, Micela, Giusi, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Pollacco, Don, additional, Queloz, Didier, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Szentgyorgyi, Andrew, additional, and Watson, Chris, additional

Published
2015
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82. THE KEPLER-10 PLANETARY SYSTEM REVISITED BY HARPS-N: A HOT ROCKY WORLD AND A SOLID NEPTUNE-MASS PLANET

Author

Dumusque, Xavier, primary, Bonomo, Aldo S., additional, Haywood, Raphaëlle D., additional, Malavolta, Luca, additional, Ségransan, Damien, additional, Buchhave, Lars A., additional, Cameron, Andrew Collier, additional, Latham, David W., additional, Molinari, Emilio, additional, Pepe, Francesco, additional, Udry, Stéphane, additional, Charbonneau, David, additional, Cosentino, Rosario, additional, Dressing, Courtney D., additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Gettel, Sara, additional, Harutyunyan, Avet, additional, Horne, Keith, additional, Lopez-Morales, Mercedes, additional, Lovis, Christophe, additional, Mayor, Michel, additional, Micela, Giusi, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Phillips, David F., additional, Piotto, Giampaolo, additional, Pollacco, Don, additional, Queloz, Didier, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Sozzetti, Alessandro, additional, Szentgyorgyi, Andrew, additional, and Watson, Chris, additional

Published
2014
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84. An Earth-sized planet with an Earth-like density

Author

Pepe, Francesco, primary, Cameron, Andrew Collier, additional, Latham, David W., additional, Molinari, Emilio, additional, Udry, Stéphane, additional, Bonomo, Aldo S., additional, Buchhave, Lars A., additional, Charbonneau, David, additional, Cosentino, Rosario, additional, Dressing, Courtney D., additional, Dumusque, Xavier, additional, Figueira, Pedro, additional, Fiorenzano, Aldo F. M., additional, Gettel, Sara, additional, Harutyunyan, Avet, additional, Haywood, Raphaëlle D., additional, Horne, Keith, additional, Lopez-Morales, Mercedes, additional, Lovis, Christophe, additional, Malavolta, Luca, additional, Mayor, Michel, additional, Micela, Giusi, additional, Motalebi, Fatemeh, additional, Nascimbeni, Valerio, additional, Phillips, David, additional, Piotto, Giampaolo, additional, Pollacco, Don, additional, Queloz, Didier, additional, Rice, Ken, additional, Sasselov, Dimitar, additional, Ségransan, Damien, additional, Sozzetti, Alessandro, additional, Szentgyorgyi, Andrew, additional, and Watson, Christopher A., additional

Published
2013
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86. The Mass of Kepler-93b and the Composition of Terrestrial Planets

Author

Dressing, Courtney Danielle, Charbonneau, David, Dumusque, Xavier, Gettel, Sara, Pepe, Francesco, Collier Cameron, Andrew, Latham, David Winslow, Molinari, Emilio, Udry, Stéphane, Affer, Laura, Bonomo, Aldo S., Buchhave, Lars A., Cosentino, Rosario, Figueira, Pedro, Fiorenzano, Aldo F. M., Harutyunyan, Avet, Haywood, Raphaelle D., Johnson, John Asher, Lopez-Morales, Mercedes, Lovis, Christophe, Malavolta, Luca, Mayor, Michel, Micela, Giusi, Motalebi, Fatemeh, Nascimbeni, Valerio, Phillips, David F., Piotto, Giampaolo, Pollacco, Don, Queloz, Didier, Rice, Ken, Sasselov, Dimitar D., Ségransan, Damien, Sozzetti, Alessandro, Szentgyorgyi, Andrew H., and Watson, Chris

Subjects
planetary systems, planets and satellites: composition, stars: individual (Kepler-93 = KOI 69 = KIC 3544595), techniques: radial velocities
Abstract

Kepler-93b is a 1.478 ± 0.019 R⊕ planet with a 4.7 day period around a bright (V = 10.2), astroseismically characterized host star with a mass of 0.911 ± 0.033 M and a radius of 0.919 ± 0.011 R. Based on 86 radial velocity observations obtained with the HARPS-N spectrograph on the Telescopio Nazionale Galileo and 32 archival Keck/HIRES observations, we present a precise mass estimate of 4.02±0.68 M⊕. The corresponding high density of 6.88±1.18 g cm−3 is consistent with a rocky composition of primarily iron and magnesium silicate. We compare Kepler-93b to other dense planets with well-constrained parameters and find that between 1 and 6 M⊕, all dense planets including the Earth and Venus are well-described by the same fixed ratio of iron to magnesium silicate. There are as of yet no examples of such planets with masses > 6 M⊕. All known planets in this mass regime have lower densities requiring significant fractions of volatiles or H/He gas. We also constrain the mass and period of the outer companion in the Kepler-93 system from the long-term radial velocity trend and archival adaptive optics images. As the sample of dense planets with well-constrained masses and radii continues to grow, we will be able to test whether the fixed compositional model found for the seven dense planets considered in this paper extends to the full population of 1–6 M⊕ planets., Astronomy

Published
2015
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87. KEPLER-21b: A ROCKY PLANET AROUND A V=8.25 mag STAR

Author

Lopez-Morales, Mercedes, Haywood, Raphaelle D., Coughlin, Jeffrey L., Zeng, Li, Buchhave, Lars A., Giles, Helen A. C., Affer, Laura, Bonomo, Aldo S., Charbonneau, David, Cameron, Andrew Collier, Consentino, Rosario, Dressing, Courtney D., Dumusque, Xavier, Pedro Figueira, Fiorenzano, Aldo F. M., Harutyunyan, Avet, Johnson, John Asher, Latham, David W., Lopez, Eric D., Lovis, Christophe, Malavolta, Luca, Mayor, Michel, Micela, Giusi, Molinari, Emilio, Mortier, Annelies, Motalebi, Fatemeh, Nascimbeni, Valerio, Pepe, Francesco, Phillips, David F., Piotto, Giampaolo, Pollacco, Don, Queloz, Didier, Rice, Ken, Sasselov, Dimitar, Segransan, Damien, Sozzetti, Alessandro, Udry, Stephane, Vanderburg, Andrew, and Watson, Chris

88. GIANO-B online data reduction software at the TNG

Author

Navarro, Ramón, Geyl, Roland, Harutyunyan, Avet, Rainer, Monica, Hernandez, Nauzet, Oliva, Ernesto, Guerra, Jose, Lodi, Marcello, San Juan, Jose, Bignamini, Andrea, Ghedina, Adriano, Ghinassi, Francesca, Molinari, Emilio, Benatti, Serena, Carleo, Ilaria, Claudi, Riccardo, Micela, Giuseppina, Tozzi, Andrea, Baffa, Carlo, Baruffolo, Andrea, Biliotti, Valdemaro, Buchschacher, Nicolas, Cecconi, Massimo, Cosentino, Rosario, Falcini, Gilberto, Fantinel, Daniela, Fini, Luca, Galli, Alberto, Giani, Elisabetta, Gonzalez, Carlos, Gonzalez-Alvarez, Esther, Gonzalez, Manuel, Gratton, Raffaele, Hernandez Diaz, Marcos, Iuzzolino, Marcella, Malavolta, Luca, Maldonado, Jesus, Origlia, Livia, Poretti, Ennio, Perez Ventura, Hector, Puglisi, Alfio, Riverol, Carlos, Riverol, Luis, Sanna, Nicoletta, Scuderi, Salvatore, Seeman, Ulf, Sozzetti, Alessandro, and Sozzi, Mauro

Published
2018
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89. Introducing GOFIO: a DRS for the GIANO-B near-infrared spectrograph

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Rainer, Monica, Harutyunyan, Avet, Carleo, Ilaria, Oliva, Ernesto, Benatti, Serena, Bignamini, Andrea, Claudi, Riccardo, Gonzalez-Alvarez, Esther, Sanna, Nicoletta, Ghedina, Adriano, Micela, Giuseppina, Molinari, Emilio, Tozzi, Andrea, Baffa, Carlo, Baruffolo, Andrea, Buchschacher, Nicolas, Cecconi, Massimo, Cosentino, Rosario, Falcini, Gilberto, Fantinel, Daniela, Fini, Luca, Galli, Alberto, Ghinassi, Francesca, Giani, Elisabetta, Gonzalez, Carlos, Gonzalez, Manuel, Gratton, Raffaele, Guerra, Jose, Hernandez Diaz, Marcos, Hernandez, Nauzet, Iuzzolino, Marcella, Lodi, Marcello, Malavolta, Luca, Maldonado, Jesus, Origlia, Livia, Perez Ventura, Hector, Puglisi, Alfio, Riverol, Carlos, Riverol, Luis, San Juan, Jose, Scuderi, Salvo, Seeman, Ulf, Sozzetti, Alessandro, and Sozzi, Mauro

Published
2018
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90. Independent Validation of the Temperate Super-Earth HD 79211 b using HARPS-N

Author

Victoria DiTomasso, Chantanelle Nava, Mercedes López-Morales, Allyson Bieryla, Ryan Cloutier, Luca Malavolta, Annelies Mortier, Lars A. Buchhave, Keivan G. Stassun, Alessandro Sozzetti, Aldo Stefano Bonomo, David Charbonneau, Andrew Collier Cameron, Rosario Cosentino, Mario Damasso, Xavier Dumusque, A. F. Martínez Fiorenzano, Adriano Ghedina, Avet Harutyunyan, R. D. Haywood, David Latham, Emilio Molinari, Francesco A. Pepe, Matteo Pinamonti, Ennio Poretti, Ken Rice, Dimitar Sasselov, Manu Stalport, Stéphane Udry, Christopher Watson, Thomas G. Wilson, DiTomasso, Victoria [0000-0003-0741-7661], Nava, Chantanelle [0000-0001-8838-3883], López-Morales, Mercedes [0000-0003-3204-8183], Bieryla, Allyson [0000-0001-6637-5401], Cloutier, Ryan [0000-0001-5383-9393], Malavolta, Luca [0000-0002-6492-2085], Mortier, Annelies [0000-0001-7254-4363], Buchhave, Lars A [0000-0003-1605-5666], Stassun, Keivan G [0000-0002-3481-9052], Sozzetti, Alessandro [0000-0002-7504-365X], Bonomo, Aldo Stefano [0000-0002-6177-198X], Charbonneau, David [0000-0002-9003-484X], Collier Cameron, Andrew [0000-0002-8863-7828], Cosentino, Rosario [0000-0003-1784-1431], Damasso, Mario [0000-0001-9984-4278], Dumusque, Xavier [0000-0002-9332-2011], Martínez Fiorenzano, AF [0000-0002-4272-4272], Ghedina, Adriano [0000-0003-4702-5152], Haywood, RD [0000-0001-9140-3574], Latham, David [0000-0001-9911-7388], Molinari, Emilio [0000-0002-1742-7735], Pinamonti, Matteo [0000-0002-4445-1845], Poretti, Ennio [0000-0003-1200-0473], Rice, Ken [0000-0002-6379-9185], Sasselov, Dimitar [0000-0001-7014-1771], Stalport, Manu [0000-0003-0996-6402], Udry, Stéphane [0000-0001-7576-6236], Watson, Christopher [0000-0002-9718-3266], Wilson, Thomas G [0000-0001-8749-1962], Apollo - University of Cambridge Repository, Science & Technology Facilities Council, University of St Andrews. School of Physics and Astronomy, and University of St Andrews. St Andrews Centre for Exoplanet Science

Subjects
MCC, Earth and Planetary Astrophysics (astro-ph.EP), Radial velocity, The Solar System, Exoplanets, and Astrobiology, Exoplanets, FOS: Physical sciences, Astronomy and Astrophysics, 3rd-DAS, 5109 Space Sciences, Astrobiology, M dwarf stars, Binary stars, QC Physics, Rare Diseases, Space and Planetary Science, astro-ph.EP, QB Astronomy, Exoplanet detection methods, Solar System, 51 Physical Sciences, QC, Astrophysics - Earth and Planetary Astrophysics, QB
Abstract

We present high-precision radial velocities (RVs) from the HARPS-N spectrograph for HD79210 and HD79211, two M0V members of a gravitationally-bound binary system. We detect a planet candidate with a period of $24.421^{+0.016}_{-0.017}$ days around HD79211 in these HARPS-N RVs, validating the planet candidate originally identified in CARMENES RV data alone. Using HARPS-N, CARMENES and HIRES RVs spanning a total of 25 years, we further refine the planet candidate parameters to $P=24.422\pm0.014$ days, $K=3.19\pm0.27$ m/s, $M$ sin $i = 10.6 \pm 1.2 M_\oplus$, and $a = 0.142 \pm0.005$ au. We do not find any additional planet candidate signals in the data of HD79211 nor do we find any planet candidate signals in HD79210. This system adds to the number of exoplanets detected in binaries with M dwarf members, and serves as a case study for planet formation in stellar binaries., Comment: Accepted for publication in AJ, 29 pages, 17 figures

Published
2023

91. K2-79b and K2-222b: Mass Measurements of Two Small Exoplanets with Periods beyond 10 days that Overlap with Periodic Magnetic Activity Signals

Author

Chantanelle Nava, Mercedes López-Morales, Annelies Mortier, Li Zeng, Helen A. C. Giles, Allyson Bieryla, Andrew Vanderburg, Lars A. Buchhave, Ennio Poretti, Steven H. Saar, Xavier Dumusque, David W. Latham, David Charbonneau, Mario Damasso, Aldo S. Bonomo, Christophe Lovis, Andrew Collier Cameron, Jason D. Eastman, Alessandro Sozzetti, Rosario Cosentino, Marco Pedani, Francesco Pepe, Emilio Molinari, Dimitar Sasselov, Michel Mayor, Manu Stalport, Luca Malavolta, Ken Rice, Christopher A. Watson, A. F. Martinez Fiorenzano, Luca Di Fabrizio, Science & Technology Facilities Council, University of St Andrews. School of Physics and Astronomy, University of St Andrews. St Andrews Centre for Exoplanet Science, Nava, Chantanelle [0000-0001-8838-3883], López-Morales, Mercedes [0000-0003-3204-8183], Mortier, Annelies [0000-0001-7254-4363], Zeng, Li [0000-0003-1957-6635], Giles, Helen AC [0000-0001-6777-4797], Bieryla, Allyson [0000-0001-6637-5401], Vanderburg, Andrew [0000-0001-7246-5438], Buchhave, Lars A [0000-0003-1605-5666], Poretti, Ennio [0000-0003-1200-0473], Saar, Steven H [0000-0001-7032-8480], Dumusque, Xavier [0000-0002-9332-2011], Latham, David W [0000-0001-9911-7388], Charbonneau, David [0000-0002-9003-484X], Damasso, Mario [0000-0001-9984-4278], Bonomo, Aldo S [0000-0002-6177-198X], Eastman, Jason D [0000-0003-3773-5142], Sozzetti, Alessandro [0000-0002-7504-365X], Pedani, Marco [0000-0002-5752-6260], Molinari, Emilio [0000-0002-1742-7735], Sasselov, Dimitar [0000-0001-7014-1771], Mayor, Michel [0000-0002-9352-5935], Malavolta, Luca [0000-0002-6492-2085], Martinez Fiorenzano, AF [0000-0002-4272-4272], Apollo - University of Cambridge Repository, Nava, C [0000-0001-8838-3883], López-Morales, M [0000-0003-3204-8183], Mortier, A [0000-0001-7254-4363], Zeng, L [0000-0003-1957-6635], Giles, HAC [0000-0001-6777-4797], Bieryla, A [0000-0001-6637-5401], Vanderburg, A [0000-0001-7246-5438], Buchhave, LA [0000-0003-1605-5666], Poretti, E [0000-0003-1200-0473], Saar, SH [0000-0001-7032-8480], Dumusque, X [0000-0002-9332-2011], Latham, DW [0000-0001-9911-7388], Charbonneau, D [0000-0002-9003-484X], Damasso, M [0000-0001-9984-4278], Bonomo, AS [0000-0002-6177-198X], Eastman, JD [0000-0003-3773-5142], Sozzetti, A [0000-0002-7504-365X], Pedani, M [0000-0002-5752-6260], Molinari, E [0000-0002-1742-7735], Sasselov, D [0000-0001-7014-1771], Mayor, M [0000-0002-9352-5935], and Malavolta, L [0000-0002-6492-2085]

Subjects
MCC, Earth and Planetary Astrophysics (astro-ph.EP), The Solar System, Exoplanets, and Astrobiology, Exoplanet astronomy, FOS: Physical sciences, Astronomy and Astrophysics, 3rd-DAS, Stellar activity, QC Physics, Space and Planetary Science, astro-ph.EP, QB Astronomy, QC, Astrophysics - Earth and Planetary Astrophysics, QB
Abstract

We present mass and radius measurements of K2-79b and K2-222b, two transiting exoplanets orbiting active G-type stars. Their respective 10.99d and 15.39d orbital periods fall near periods of signals induced by stellar magnetic activity. The two signals might therefore interfere and lead to an inaccurate estimate of exoplanet mass. We present a method to mitigate these effects when radial velocity and activity indicator observations are available over multiple observing seasons and the orbital period of the exoplanet is known. We perform correlation and periodogram analyses on sub-sets composed of each target's two observing seasons, in addition to the full data sets. For both targets, these analyses reveal an optimal season with little to no interference at the orbital period of the known exoplanet. We make a confident mass detection of each exoplanet by confirming agreement between fits to the full radial velocity set and the optimal season. For K2-79b, we measure a mass of 11.8 $\pm$ 3.6 $M_{Earth}$ and a radius of 4.09 $\pm$ 0.17 $R_{Earth}$. For K2-222b, we measure a mass of 8.0 $\pm$ 1.8 $M_{Earth}$ and a radius of 2.35 $\pm$ 0.08 $R_{Earth}$. According to model predictions, K2-79b is a highly irradiated Uranus-analog and K2-222b hosts significant amounts of water ice. We also present an RV solution for a candidate second companion orbiting K2-222 at 147.5d., Comment: 33 pages, 17 figures, 13 tables

Published
2022
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92. The Mass of Kepler-93b and The Composition of Terrestrial Planets

Author

Luca Malavolta, Stéphane Udry, Pedro Figueira, Dimitar Sasselov, David Charbonneau, David F. Phillips, Raphaëlle D. Haywood, Lars A. Buchhave, David W. Latham, Andrew Szentgyorgyi, Damien Ségransan, Christopher A. Watson, Valerio Nascimbeni, Andrew Collier Cameron, Emilio Molinari, Fatemeh Motalebi, Aldo S. Bonomo, Christophe Lovis, Courtney D. Dressing, Giampaolo Piotto, Aldo F. M. Fiorenzano, Alessandro Sozzetti, Mercedes Lopez-Morales, Don Pollacco, Rosario Cosentino, John Asher Johnson, Xavier Dumusque, Ken Rice, Avet Harutyunyan, Giuseppina Micela, Sara Gettel, Michel Mayor, Francesco Pepe, Didier Queloz, L. Affer, Charbonneau, David, Dumusque, Xavier, Pepe, Francesco Alfonso, Udry, Stéphane, Figueira, Pedro Ricardo, Lovis, Christophe, Malavolta, Luca, Mayor, Michel, Motalebi, Fatemeh, Queloz, Didier, Segransan, Damien, ITA, USA, GBR, ESP, DNK, PRT, CHE, European Commission, Science & Technology Facilities Council, PPARC - Now STFC, and University of St Andrews. School of Physics and Astronomy

Subjects
Solar-systems, 010504 meteorology & atmospheric sciences, Orbits, Astrophysics, 01 natural sciences, Transits, Planet, techniques: radial velocities, QB Astronomy, Astrophysics::Solar and Stellar Astrophysics, Abundances, composition [planets and satellites], 010303 astronomy & astrophysics, Radius relationships, R2C, QC, Super-Earths, QB, Physics, Earth and Planetary Astrophysics (astro-ph.EP), education.field_of_study, Solar mass, ~DC~, planets and satellites: composition, radial velocities [techniques], Earth mass, Individual stars (Kepler-93 = KOI 69 = KIC 3544595), Radial velocity, Extrasolar planets, Astrophysics - Solar and Stellar Astrophysics, planetary systems, stars: individual: Kepler-93 = KOI 69 = KIC 3544595, Catalog, Astrophysics::Earth and Planetary Astrophysics, BDC, Radial velocities, Population, NDAS, FOS: Physical sciences, Solar radius, Earth radius, individual: Kepler-10 KOI-072 KIC 11904151 [stars], individual (Kepler-93=KOI 69=KIC 3544595) [Stars], 0103 physical sciences, 100 Earth masses, individual: Kepler-93 &equals KOI 69 &equals KIC 3544595 [stars], education, Solar and Stellar Astrophysics (astro-ph.SR), 0105 earth and related environmental sciences, Astronomy and Astrophysics, Planets and satellites composition, Stars, QC Physics, 13. Climate action, Space and Planetary Science, Terrestrial planet, ddc:520, Astrophysics - Earth and Planetary Astrophysics
Abstract

Kepler-93b is a 1.478 +/- 0.019 Earth radius planet with a 4.7 day period around a bright (V=10.2), astroseismically-characterized host star with a mass of 0.911+/-0.033 solar masses and a radius of 0.919+/-0.011 solar radii. Based on 86 radial velocity observations obtained with the HARPS-N spectrograph on the Telescopio Nazionale Galileo and 32 archival Keck/HIRES observations, we present a precise mass estimate of 4.02+/-0.68 Earth masses. The corresponding high density of 6.88+/-1.18 g/cc is consistent with a rocky composition of primarily iron and magnesium silicate. We compare Kepler-93b to other dense planets with well-constrained parameters and find that between 1-6 Earth masses, all dense planets including the Earth and Venus are well-described by the same fixed ratio of iron to magnesium silicate. There are as of yet no examples of such planets with masses > 6 Earth masses: All known planets in this mass regime have lower densities requiring significant fractions of volatiles or H/He gas. We also constrain the mass and period of the outer companion in the Kepler-93 system from the long-term radial velocity trend and archival adaptive optics images. As the sample of dense planets with well-constrained masses and radii continues to grow, we will be able to test whether the fixed compositional model found for the seven dense planets considered in this paper extends to the full population of 1-6 Earth mass planets., 8 pages, 4 figures. Accepted for publication in ApJ

Published
2015

93. THE KEPLER-10 PLANETARY SYSTEM REVISITED BY HARPS-N: A HOT ROCKY WORLD AND A SOLID NEPTUNE-MASS PLANET

Author

Alessandro Sozzetti, Pedro Figueira, Rosario Cosentino, Xavier Dumusque, David Charbonneau, Keith Horne, Courtney D. Dressing, David F. Phillips, Andrew Szentgyorgyi, Sara Gettel, Christophe Lovis, Giampaolo Piotto, Don Pollacco, Mercedes Lopez-Morales, Michel Mayor, Raphaëlle D. Haywood, Aldo S. Bonomo, Stéphane Udry, Andrew Collier Cameron, Emilio Molinari, Valerio Nascimbeni, Dimitar Sasselov, Damien Ségransan, Christopher A. Watson, Ken Rice, Avet Harutyunyan, Didier Queloz, Francesco Pepe, Aldo F. M. Fiorenzano, David W. Latham, Luca Malavolta, Giuseppina Micela, Fatemeh Motalebi, Lars A. Buchhave, Dumusque, Xavier, Malavolta, Luca, Segransan, Damien, Pepe, Francesco Alfonso, Udry, Stéphane, Charbonneau, David, Figueira, Pedro Ricardo, Lovis, Christophe, Mayor, Michel, Motalebi, Fatemeh, Science & Technology Facilities Council, European Commission, and University of St Andrews. School of Physics and Astronomy

Subjects
stars: individual: Kepler-10 KOI-072 KIC 11904151, stars: statistics, Kepler, planetary systems, techniques: photometric, techniques: spectroscopic, photometric [techniques], individual: Kepler-10 KOI-072 KIC 11904151 [stars], Neptune, Planet, QB Astronomy, Photometric techniques, Spectrograph, QB, Physics, Individual stars (Kepler-10 KOI-072 KIC 11904151), Statistics, Astronomy, Astronomy and Astrophysics, Radius, Planetary system, individual (Kepler-10 KOI-072 KIC 11904151) [Stars], Radial velocity, Planetary systems, 13. Climate action, Space and Planetary Science, ddc:520, spectroscopic [techniques], Satellite, Spectroscopic techniques, Astrophysics - Earth and Planetary Astrophysics, statistics [stars]
Abstract

Kepler-10b was the first rocky planet detected by the Kepler satellite and con- firmed with radial velocity follow-up observations from Keck-HIRES. The mass of the planet was measured with a precision of around 30%, which was insufficient to constrain models of its internal structure and composition in detail. In addition to Kepler-10b, a second planet transiting the same star with a period of 45 days was sta- tistically validated, but the radial velocities were only good enough to set an upper limit of 20 Mearth for the mass of Kepler-10c. To improve the precision on the mass for planet b, the HARPS-N Collaboration decided to observe Kepler-10 intensively with the HARPS-N spectrograph on the Telescopio Nazionale Galileo on La Palma. In to- tal, 148 high-quality radial-velocity measurements were obtained over two observing seasons. These new data allow us to improve the precision of the mass determina- tion for Kepler-10b to 15%. With a mass of 3.33 +/- 0.49 Mearth and an updated radius of 1.47 +0.03 -0.02 Rearth, Kepler-10b has a density of 5.8 +/- 0.8 g cm-3, very close to the value -0.02 predicted by models with the same internal structure and composition as the Earth. We were also able to determine a mass for the 45-day period planet Kepler-10c, with an even better precision of 11%. With a mass of 17.2 +/- 1.9 Mearth and radius of 2.35 +0.09 -0.04 Rearth, -0.04 Kepler-10c has a density of 7.1 +/- 1.0 g cm-3. Kepler-10c appears to be the first strong evidence of a class of more massive solid planets with longer orbital periods., Comment: 44 pages, 8 figures, accepted for publication in ApJ

Published
2014

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