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1. CHROMOSPHERICALLY ACTIVE STARS in the RAVE SURVEY. II. YOUNG DWARFS in the SOLAR NEIGHBORHOOD

Author

Andrea Kunder, Alessandro Siviero, Matthias Steinmetz, Gerard Gilmore, J. Wojno, Warren A. Reid, Brad K. Gibson, Quentin A. Parker, R. F. G. Wyse, Joss Bland-Hawthorn, Julio F. Navarro, Tomaž Zwitter, C. Conrad, Olivier Bienaymé, G. Matijevič, Fred G. Watson, Ulisse Munari, Maruša Žerjal, Kenneth C. Freeman, Eva K. Grebel, George M. Seabroke, Georges Kordopatis, Žerjal, M [0000-0001-6023-4974], Zwitter, T [0000-0002-2325-8763], Grebel, EK [0000-0002-1891-3794], Munari, U [0000-0001-6805-9664], Steinmetz, M [0000-0001-6516-7459], Bland-Hawthorn, J [0000-0001-7516-4016], Gibson, BK [0000-0003-4446-3130], Gilmore, G [0000-0003-4632-0213], Kunder, A [0000-0002-2808-1370], and Apollo - University of Cambridge Repository

Subjects
stars: chromospheres, Emission flux, Field (physics), Infrared, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, stars: pre-main sequence, 01 natural sciences, 0103 physical sciences, stars: activity, Astrophysics::Solar and Stellar Astrophysics, stars: evolution, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Star formation, Astronomy and Astrophysics, Stars, Young age, stars: emission-line, Be, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Age estimation, Astrophysics::Earth and Planetary Astrophysics, catalogs, Dynamo
Abstract

A large sample of over 38,000 chromospherically active candidate solar-like stars and cooler dwarfs from the RAVE survey is addressed in this paper. An improved activity identification with respect to the previous study was introduced to build a catalog of field stars in the Solar neighborhood with an excess emission flux in the calcium infrared triplet wavelength region. The central result of this work is the calibration of the age--activity relation for the main sequence dwarfs in a range from a few $10 \; \mathrm{Myr}$ up to a few Gyr. It enabled an order of magnitude age estimation of the entire active sample. Almost 15,000 stars are shown to be younger than $1\;\mathrm{Gyr}$ and $\sim$2000 younger than $100\;\mathrm{Myr}$. The young age of the most active stars is confirmed by their position off the main sequence in the $J-K$ versus $N_{UV}-V$ diagram showing strong ultraviolet excess, mid-infrared excess in the $J-K$ versus $W_1-W_2$ diagram and very cool temperatures ($J-K>0.7$). They overlap with the reference pre-main sequence RAVE stars often displaying X-ray emission. The activity level increasing with the color reveals their different nature from the solar-like stars and probably represents an underlying dynamo generating magnetic fields in cool stars. 50\% of the RAVE objects from DR5 are found in the TGAS catalog and supplemented with accurate parallaxes and proper motions by Gaia. This makes the database of a large number of young stars in a combination with RAVE's radial velocities directly useful as a tracer of the very recent large-scale star formation history in the Solar neighborhood. The data are available online in the Vizier database., 21 pages, 14 figures, accepted to ApJ

Published
2018
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2. A Study of Two Dwarf Irregular Galaxies with Asymmetrical Star Formation Distributions

Author

Stacey N. Bright, Robert C. Kennicutt, Angela Adamo, David O. Cook, Deidre A. Hunter, Bruce G. Elmegreen, Michele Fumagalli, Elena Sabbi, Matteo Messa, Lauren Kahre, J. E. Ryon, Elena Sacchi, L. Ubeda, John S. Gallagher, Se-Heon Oh, Hong-Xin Zhang, Eva K. Grebel, Monica Tosi, Daniel A. Dale, Hwihyun Kim, Kathryn Grasha, Dimitrios A. Gouliermis, Samavarti Gallardo, Michele Cignoni, Daniela Calzetti, Janice C. Lee, Hunter, D, Gallardo, S, Zhang, H, Adamo, A, Cook, D, Oh, S, Elmegreen, B, Kim, H, Kahre, L, Ubeda, L, Bright, S, Ryon, J, Fumagalli, M, Sacchi, E, Kennicutt, R, Tosi, M, Dale, D, Cignoni, M, Messa, M, Grebel, E, Gouliermis, D, Sabbi, E, Grasha, K, Gallagher, J, Calzetti, D, Lee, J, Hunter, DA [0000-0002-3322-9798], Adamo, A [0000-0002-8192-8091], Cook, DO [0000-0002-6877-7655], Oh, SH [0000-0002-5648-9920], Elmegreen, BG [0000-0002-1723-6330], Kim, H [0000-0003-4770-688X], Kahre, L [0000-0002-2037-3096], Fumagalli, M [0000-0001-6676-3842], Sacchi, E [0000-0001-5618-0109], Tosi, M [0000-0002-0986-4759], Dale, DA [0000-0002-5782-9093], Cignoni, M [0000-0001-6291-6813], Grebel, EK [0000-0002-1891-3794], Gouliermis, DA [0000-0002-2763-0075], Sabbi, E [0000-0003-2954-7643], Grasha, K [0000-0002-3247-5321], Gallagher, JS [0000-0001-8608-0408], Calzetti, D [0000-0002-5189-8004], Lee, JC [0000-0002-2278-9407], and Apollo - University of Cambridge Repository

Subjects
010504 meteorology & atmospheric sciences, FOS: Physical sciences, galaxies: individual (DDO 187, NGC 3738), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Rotation, 01 natural sciences, 0103 physical sciences, Dispersion (optics), Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, NGC 3738), Star formation, Astronomy and Astrophysics, galaxies: dwarf, galaxies: individual (DDO 187, Astrophysics - Astrophysics of Galaxies, Galaxy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), galaxies: star formation, Irregular galaxy
Abstract

Two dwarf irregular galaxies DDO 187 and NGC 3738 exhibit a striking pattern of star formation: intense star formation is taking place in a large region occupying roughly half of the inner part of the optical galaxy. We use data on the HI distribution and kinematics and stellar images and colors to examine the properties of the environment in the high star formation rate (HSF) halves of the galaxies in comparison with the low star formation rate (LSF) halves. We find that the pressure and gas density are higher on the HSF sides by 30-70%. In addition we find in both galaxies that the HI velocity fields exhibit significant deviations from ordered rotation and there are large regions of high velocity dispersion and multiple velocity components in the gas beyond the inner regions of the galaxies. The conditions in the HSF regions are likely the result of large-scale external processes affecting the internal environment of the galaxies and enabling the current star formation there., Comment: In press in ApJ

Published
2018
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3. The Resolved Stellar Populations in the LEGUS Galaxies1

Author

D. M. Elmegreen, Elena Sabbi, A. Dolphin, Geoffrey C. Clayton, Eva K. Grebel, Linda J. Smith, T. M. Brown, G. Ashworth, R. Walterbos, Matteo Messa, Lauren Kahre, J. Prieto, Alessandra Aloisi, Rupali Chandar, C. D. Martin, Mark R. Krumholz, M. W. Regan, Daniel A. Dale, Bruce G. Elmegreen, Hwihyun Kim, Kathryn Grasha, Elena Sacchi, F. Shabani, A. Herrero, R. C. Kennicutt, David O. Cook, J. E. Ryon, A. Nota, B. C. Whitmore, L. Ubeda, D. Schaerer, D. Schiminovich, Jennifer E. Andrews, J. C. Lee, Stacey N. Bright, Dimitrios A. Gouliermis, John S. Gallagher, D. J. Lennon, Michele Fumagalli, Daniela Calzetti, Kelsey E. Johnson, Michele Cignoni, S. D. Van Dyk, C. Christian, P. Nair, Clare Dobbs, Aaron S. Evans, Monica Tosi, G. Ostlin, Anne Pellerin, Deidre A. Hunter, David A. Thilker, Angela Adamo, S. E. de Mink, Aida Wofford, Sabbi, E, Calzetti, D, Ubeda, L, Adamo, A, Cignoni, M, Thilker, D, Aloisi, A, Elmegreen, B, Elmegreen, D, Gouliermis, D, Grebel, E, Messa, M, Smith, L, Tosi, M, Dolphin, A, Andrews, J, Ashworth, G, Bright, S, Brown, T, Chandar, R, Christian, C, Clayton, G, Cook, D, Dale, D, De Mink, S, Dobbs, C, Evans, A, Fumagalli, M, Gallagher, J, Grasha, K, Herrero, A, Hunter, D, Johnson, K, Kahre, L, Kennicutt, R, Kim, H, Krumholz, M, Lee, J, Lennon, D, Martin, C, Nair, P, Nota, A, Ostlin, G, Pellerin, A, Prieto, J, Regan, M, Ryon, J, Sacchi, E, Schaerer, D, Schiminovich, D, Shabani, F, Van Dyk, S, Walterbos, R, Whitmore, B, Wofford, A, Sabbi, E [0000-0003-2954-7643], Calzetti, D [0000-0002-5189-8004], Adamo, A [0000-0002-8192-8091], Cignoni, M [0000-0001-6291-6813], Thilker, D [0000-0002-8528-7340], Aloisi, A [0000-0003-4137-882X], Elmegreen, BG [0000-0002-1723-6330], Elmegreen, DM [0000-0002-1392-3520], Gouliermis, DA [0000-0002-2763-0075], Grebel, EK [0000-0002-1891-3794], Smith, LJ [0000-0002-0806-168X], Tosi, M [0000-0002-0986-4759], Dolphin, A [0000-0001-8416-4093], Chandar, R [0000-0003-0085-4623], Clayton, GC [0000-0002-0141-7436], Dale, DA [0000-0002-5782-9093], Grasha, K [0000-0002-3247-5321], Hunter, DA [0000-0002-3322-9798], Johnson, KE [0000-0001-8348-2671], Kahre, L [0000-0002-2037-3096], Pellerin, A [0000-0003-1887-1966], Prieto, J [0000-0003-0943-0026], Sacchi, E [0000-0001-5618-0109], Schaerer, D [0000-0001-7144-7182], Shabani, F [0000-0002-5266-1260], Walterbos, R [0000-0002-0782-3064], Apollo - University of Cambridge Repository, and Low Energy Astrophysics (API, FNWI)

Subjects
Hertzsprung–Russell diagram, Russell and C-M diagram, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Advanced Camera for Surveys, symbols.namesake, galaxies: star clusters: general, galaxies: star formation, galaxies: stellar content, Hertzsprung, Russell and C-M diagrams, stars: formation, Astronomy and Astrophysics, Space and Planetary Science, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Star formation, Galaxy, Red-giant branch, Stars, Star cluster, symbols, Hertzsprung-Russell and C-M diagrams, Astrophysics::Earth and Planetary Astrophysics, Wide Field Camera 3
Abstract

The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in 5 bands from the near-UV to the I-band, combining new Wide Field Camera 3 observations with archival Advanced Camera for Surveys data. LEGUS was designed to investigate how star formation occurs and develops on both small and large scales, and how it relates to the galactic environments. In this paper we present the photometric catalogs for all the apparently single stars identified in the 50 LEGUS galaxies. Photometric catalogs and mosaicked images for all filters are available for download. We present optical and near-UV color-magnitude diagrams for all the galaxies. For each galaxy we derived the distance from the tip of the red giant branch. We then used the NUV color-magnitude diagrams to identify stars more massive than 14 M ☉, and compared their number with the number of massive stars expected from the GALEX FUV luminosity. Our analysis shows that the fraction of massive stars forming in star clusters and stellar associations is about constant with the star formation rate. This lack of a relation suggests that the timescale for evaporation of unbound structures is comparable or longer than 10 Myr. At low star formation rates this translates to an excess of mass in clustered environments as compared to model predictions of cluster evolution, suggesting that a significant fraction of stars form in unbound systems. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA Inc., under NASA contract NAS 5-26555.

Published
2018

4. Extinction Maps and Dust-to-gas Ratios in Nearby Galaxies with LEGUS

Author

Leonardo Ubeda, Aaron S. Evans, Debra Meloy Elmegreen, Brad Whitmore, Daniel A. Dale, Janice C. Lee, Rene A. M. Walterbos, Carol Christian, Linda J. Smith, Rupali Chandar, Hwihyun Kim, R. C. Kennicutt, F. Shabani, Kathryn Grasha, Clare Dobbs, Dimitrios A. Gouliermis, Jennifer E. Andrews, Bruce G. Elmegreen, Alessandra Aloisi, Daniela Calzetti, J. E. Ryon, Michele Cignoni, Aida Wofford, Deidre A. Hunter, Michele Fumagalli, S. E. de Mink, John S. Gallagher, Elena Sabbi, David A. Thilker, Stacey N. Bright, Daniel Schaerer, S. D. Van Dyk, Preethi Nair, Kelsey E. Johnson, Matteo Messa, Antonella Nota, A. Herrero, Mark R. Krumholz, Elena Sacchi, Thomas M. Brown, Angela Adamo, L. Kahre, G. Ashworth, Eva K. Grebel, Monica Tosi, David O. Cook, Anne Pellerin, Low Energy Astrophysics (API, FNWI), Kahre, L [0000-0002-2037-3096], Walterbos, RA [0000-0002-0782-3064], Kim, H [0000-0003-4770-688X], Thilker, D [0000-0002-8528-7340], Calzetti, D [0000-0002-5189-8004], Lee, JC [0000-0002-2278-9407], Sabbi, E [0000-0003-2954-7643], Aloisi, A [0000-0003-4137-882X], Cignoni, M [0000-0001-6291-6813], Cook, DO [0000-0002-6877-7655], Dale, DA [0000-0002-5782-9093], Elmegreen, BG [0000-0002-1723-6330], Elmegreen, DM [0000-0002-1392-3520], Fumagalli, M [0000-0001-6676-3842], Gallagher, JS [0000-0001-8608-0408], Gouliermis, DA [0000-0002-2763-0075], Grasha, K [0000-0002-3247-5321], Grebel, EK [0000-0002-1891-3794], Hunter, DA [0000-0002-3322-9798], Sacchi, E [0000-0001-5618-0109], Smith, LJ [0000-0002-0806-168X], Tosi, M [0000-0002-0986-4759], Adamo, A [0000-0002-8192-8091], Brown, TM [0000-0002-1793-9968], Chandar, R [0000-0003-0085-4623], Christian, C [0000-0002-2179-3308], De Mink, SE [0000-0001-9336-2825], Herrero, A [0000-0001-8768-2179], Johnson, KE [0000-0001-8348-2671], Krumholz, MR [0000-0003-3893-854X], Pellerin, A [0000-0003-1887-1966], Schaerer, D [0000-0001-7144-7182], Shabani, F [0000-0002-5266-1260], Van Dyk, SD [0000-0001-9038-9950], Apollo - University of Cambridge Repository, Kahre, L, Walterbos, R, Kim, H, Thilker, D, Calzetti, D, Lee, J, Sabbi, E, Ubeda, L, Aloisi, A, Cignoni, M, Cook, D, Dale, D, Elmegreen, B, Elmegreen, D, Fumagalli, M, Gallagher, J, Gouliermis, D, Grasha, K, Grebel, E, Hunter, D, Sacchi, E, Smith, L, Tosi, M, Adamo, A, Andrews, J, Ashworth, G, Bright, S, Brown, T, Chandar, R, Christian, C, De Mink, S, Dobbs, C, Evans, A, Herrero, A, Johnson, K, Kennicutt, R, Krumholz, M, Messa, M, Nair, P, Nota, A, Pellerin, A, Ryon, J, Schaerer, D, Shabani, F, Van Dyk, S, Whitmore, B, and Wofford, A

Subjects
galaxies: spiral, Metallicity, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Power law, Hubble space telescope, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, ISM: general, Physics, Extinction, 010308 nuclear & particles physics, extinction, Astronomy and Astrophysics, HERA, galaxies: dwarf, Astrophysics - Astrophysics of Galaxies, Galaxy, Stars, dust, galaxies: ISM, galaxies: photometry, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Spectral energy distribution, dust, extinction, Astrophysics::Earth and Planetary Astrophysics
Abstract

We present a study of the dust-to-gas ratios in five nearby galaxies NGC 628 (M74), NGC 6503, NGC 7793, UGC 5139 (Holmberg I), and UGC 4305 (Holmberg II). Using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury program LEGUS (Legacy ExtraGalactic UV Survey) combined with archival HST/ACS data, we correct thousands of individual stars for extinction across these five galaxies using an isochrone-matching (reddening-free Q) method. We generate extinction maps for each galaxy from the individual stellar extinctions using both adaptive and fixed resolution techniques, and correlate these maps with neutral HI and CO gas maps from literature, including The HI Nearby Galaxy Survey (THINGS) and the HERA CO-Line Extragalactic Survey (HERACLES). We calculate dust-to-gas ratios and investigate variations in the dust-to-gas ratio with galaxy metallicity. We find a power law relationship between dust-to-gas ratio and metallicity, consistent with other studies of dust-to-gas ratio compared to metallicity. We find a change in the relation when H$_2$ is not included. This implies that underestimation of $N_{H_2}$ in low-metallicity dwarfs from a too-low CO-to-H$_2$ conversion factor $X_{CO}$ could have produced too low a slope in the derived relationship between dust-to-gas ratio and metallicity. We also compare our extinctions to those derived from fitting the spectral energy distribution (SED) using the Bayesian Extinction and Stellar Tool (BEAST) for NGC 7793 and find systematically lower extinctions from SED-fitting as compared to isochrone matching., Comment: 22 pages, 14 figures, accepted by ApJ

Published
2018

5. The RAVE-on Catalog of Stellar Atmospheric Parameters and Chemical Abundances for Chemo-dynamic Studies in the Gaia Era

Author

Georges Kordopatis, Gerry Gilmore, Ulisse Munari, Olivier Bienaymé, Julio F. Navarro, Hans Walter-Rix, Harry Enke, Andrea Kunder, Matthias Steinmetz, Eva K. Grebel, Jason L. Sanders, Keith Hawkins, Arnaud Siebert, George M. Seabroke, Warren Reid, Rosemary F. G. Wyse, Sergey E. Koposov, Andrew R. Casey, David W. Hogg, Kenneth C. Freeman, Gal Matijevic, Amina Helmi, Brad K. Gibson, Melissa Ness, Luca Casagrande, Joss Bland-Hawthorn, Tomaž Zwitter, Astronomy, Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Casey, AR [0000-0003-0174-0564], Hogg, DW [0000-0003-2866-9403], Rix, HW [0000-0003-4996-9069], Kunder, A [0000-0002-2808-1370], Steinmetz, M [0000-0001-6516-7459], Koposov, S [0000-0003-2644-135X], Sanders, J [0000-0003-4593-6788], Gilmore, G [0000-0003-4632-0213], Zwitter, T [0000-0002-2325-8763], Bland-Hawthorn, J [0000-0001-7516-4016], Gibson, BK [0000-0003-4446-3130], Grebel, EK [0000-0002-1891-3794], Helmi, A [0000-0003-3937-7641], Munari, U [0000-0001-6805-9664], and Apollo - University of Cambridge Repository

Subjects
SOLAR NEIGHBORHOOD, astro-ph.SR, stars: abundances, METAL-POOR STARS, Milky Way, astro-ph.GA, FOS: Physical sciences, Astrophysics, 01 natural sciences, 7. Clean energy, Spectral line, G-DWARF, GLOBULAR-CLUSTERS, 0103 physical sciences, Galaxy formation and evolution, RESOLUTION SPECTROSCOPY, VELOCITY EXPERIMENT RAVE, Spectroscopy, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), ComputingMilieux_MISCELLANEOUS, Physics, 010308 nuclear & particles physics, Astronomy and Astrophysics, ELEMENTAL ABUNDANCE, Effective temperature, Surface gravity, Astrophysics - Astrophysics of Galaxies, Radial velocity, 1ST DATA RELEASE, Stars, GENEVA-COPENHAGEN SURVEY, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, Space and Planetary Science, [SDU]Sciences of the Universe [physics], Astrophysics of Galaxies (astro-ph.GA), MILKY-WAY, stars: fundamental parameters
Abstract

The orbits, atmospheric parameters, chemical abundances, and ages of individual stars in the Milky Way provide the most comprehensive illustration of galaxy formation available. The Tycho-Gaia Astrometric Solution (TGAS) will deliver astrometric parameters for the largest ever sample of Milky Way stars, though its full potential cannot be realized without the addition of complementary spectroscopy. Among existing spectroscopic surveys, the RAdial Velocity Experiment (RAVE) has the largest overlap with TGAS ($\gtrsim$200,000 stars). We present a data-driven re-analysis of 520,781 RAVE spectra using The Cannon. For red giants, we build our model using high-fidelity APOGEE stellar parameters and abundances for stars that overlap with RAVE. For main-sequence and sub-giant stars, our model uses stellar parameters from the K2/EPIC. We derive and validate effective temperature $T_{\rm eff}$, surface gravity $\log{g}$, and chemical abundances of up to seven elements (O, Mg, Al, Si, Ca, Fe, Ni). We report a total of 1,685,851 elemental abundances with a typical precision of 0.07 dex, a substantial improvement over previous RAVE data releases. The synthesis of RAVE-on and TGAS is the most powerful data set for chemo-dynamic analyses of the Milky Way ever produced., Derived labels, associated errors, and relevant metadata are available from the RAVE database (http://www.rave-survey.org) from 19 September 2016

Published
2017
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6. THE RADIAL VELOCITY EXPERIMENT (RAVE):FIFTH DATA RELEASE

Author

Alessandro Siviero, Benoit Famaey, Harry Enke, Quentin A. Parker, Andrea Miglio, Kenneth C. Freeman, Arnaud Siebert, Gal Matijevic, Joss Bland-Hawthorn, Ivan Minchev, Andrea Kunder, William J. Chaplin, Borja Anguiano, Alejandra Recio-Blanco, Ralf-Dieter Scholz, Keith Hawkins, Matthias Steinmetz, Yvonne Elsworth, Janez Kos, B. Mosser, Kristin Fiegert, Gerard Gilmore, Paul J. McMillan, Olivier Bienaymé, James Binney, Marusa Zerjal, Amina Helmi, Mikkel N. Lund, Rosemary F. G. Wyse, Luca Casagrande, Teresa Antoja, Georges Kordopatis, Paul Cass, Marica Valentini, Cristina Chiappini, George M. Seabroke, Ortwin Gerhard, Paula Jofre, Brad K. Gibson, Eva K. Grebel, Guy R. Davies, Albert Bijaoui, Jennifer Wojno, Patrick de Laverny, D. Burton, Julio F. Navarro, Milorad Stupar, Sanjib Sharma, Fred G. Watson, Andreas Ritter, M. Hartley, Warren Reid, Tomaz Zwitter, Ulisse Munari, Joseph Louis LAGRANGE (LAGRANGE), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Chemistry, UCL, Christopher Ingold Laboratories, Australian National University (ANU), Institut d'Astrophysique et de Géophysique [Liège], Université de Liège, Rudolf Peierls Center for Theoretical Physics, University of Oxford [Oxford], Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Observatoire astronomique de Strasbourg (OAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Astronomy [Rochester], University of Rochester [USA], Anglo-Australian Observatory (AAO), Sydney Institute for Astronomy (SIfA), The University of Sydney, Max-Planck-Institut für Extraterrestrische Physik (MPE), School of Physics and Astronomy, University of Birmingham [Birmingham], Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Kunder, A [0000-0002-2808-1370], Steinmetz, M [0000-0001-6516-7459], Zwitter, T [0000-0002-2325-8763], Valentini, M [0000-0003-0974-4148], De Laverny, P [0000-0002-2817-4104], Grebel, EK [0000-0002-1891-3794], Helmi, A [0000-0003-3937-7641], Antoja, T [0000-0003-2595-5148], Gilmore, G [0000-0003-4632-0213], Famaey, B [0000-0003-3180-9825], Gibson, BK [0000-0003-4446-3130], Munari, U [0000-0001-6805-9664], Minchev, I [0000-0002-5627-0355], Bland-Hawthorn, J [0000-0001-7516-4016], Sharma, S [0000-0002-0920-809X], Chaplin, WJ [0000-0002-5714-8618], Davies, GR [0000-0002-4290-7351], Lund, MN [0000-0001-9214-5642], Miglio, A [0000-0001-5998-8533], Apollo - University of Cambridge Repository, Astronomy, Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), University of Oxford, and Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
stars: abundances, Infrared, Red giant, METAL-POOR STARS, Metallicity, FOS: Physical sciences, INFRARED FLUX METHOD, MILKY-WAY DISK, Astrophysics, EFFECTIVE TEMPERATURES, 01 natural sciences, Spectral line, surveys, 0103 physical sciences, stellar content [Galaxy], 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Solar and Stellar Astrophysics (astro-ph.SR), [PHYS]Physics [physics], Physics, OPEN CLUSTER, Galaxy: stellar content, 010308 nuclear & particles physics, ELEMENTAL ABUNDANCES, GALACTIC CHEMICAL EVOLUTION, abundances [Galaxy], Astronomy and Astrophysics, Effective temperature, kinematics and dynamics [Galaxy], Surface gravity, Astrophysics - Astrophysics of Galaxies, Radial velocity, abundances [stars], 1ST DATA RELEASE, Stars, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), STELLAR ANGULAR DIAMETERS, CA II TRIPLET, Galaxy: abundances, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Galaxy: kinematics and dynamics, catalogs
Abstract

Data Release 5 (DR5) of the Radial Velocity Experiment (RAVE) is the fifth data release from a magnitude-limited (9< I < 12) survey of stars randomly selected in the southern hemisphere. The RAVE medium-resolution spectra ($R\sim7500$) covering the Ca-triplet region (8410-8795��) span the complete time frame from the start of RAVE observations in 2003 to their completion in 2013. Radial velocities from 520,781 spectra of 457,588 unique stars are presented, of which 255,922 stellar observations have parallaxes and proper motions from the Tycho-Gaia astrometric solution (TGAS) in Gaia DR1. For our main DR5 catalog, stellar parameters (effective temperature, surface gravity, and overall metallicity) are computed using the RAVE DR4 stellar pipeline, but calibrated using recent K2 Campaign 1 seismic gravities and Gaia benchmark stars, as well as results obtained from high-resolution studies. Also included are temperatures from the Infrared Flux Method, and we provide a catalogue of red giant stars in the dereddened color $(J-Ks)_0$ interval (0.50,0.85) for which the gravities were calibrated based only on seismology. Further data products for sub-samples of the RAVE stars include individual abundances for Mg, Al, Si, Ca, Ti, Fe, and Ni, and distances found using isochrones. Each RAVE spectrum is complemented by an error spectrum, which has been used to determine uncertainties on the parameters. The data can be accessed via the RAVE Web site or the Vizier database., accepted Astronomical Journal version, data tables on RAVE Web site: https://www.rave-survey.org/project/

Published
2017
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