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Your search keyword '"Carollo, M."' showing total 14 results
Start Over Author "Carollo, M." Journal the astrophysical journal
14 results on '"Carollo, M."'

1. COMBINED CO AND DUST SCALING RELATIONS OF DEPLETION TIME AND MOLECULAR GAS FRACTIONS WITH COSMIC TIME, SPECIFIC STAR-FORMATION RATE, AND STELLAR MASS**Based on observations with the Plateau de Bure millimetre interferometer, operated by the Institute for Radio Astronomy in the Millimetre Range (IRAM), which is funded by a partnership of INSU/CNRS (France), MPG (Germany), and IGN (Spain).

Author

Genzel, R, Tacconi, LJ, Lutz, D, Saintonge, A, Berta, S, Magnelli, B, Combes, F, García-Burillo, S, Neri, R, Bolatto, A, Contini, T, Lilly, S, Boissier, J, Boone, F, Bouché, N, Bournaud, F, Burkert, A, Carollo, M, Colina, L, Cooper, MC, Cox, P, Feruglio, C, Schreiber, NM Förster, Freundlich, J, Gracia-Carpio, J, Juneau, S, Kovac, K, Lippa, M, Naab, T, Salome, P, Renzini, A, Sternberg, A, Walter, F, Weiner, B, Weiss, A, and Wuyts, S

Subjects
galaxies: evolution, galaxies: high-redshift, galaxies: kinematics and dynamics, infrared: galaxies, astro-ph.GA, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

We combine molecular gas masses inferred from CO emission in 500 star-forming galaxies (SFGs) between z = 0 and 3, from the IRAM-COLDGASS, PHIBSS1/2, and other surveys, with gas masses derived from Herschel far-IR dust measurements in 512 galaxy stacks over the same stellar mass/redshift range. We constrain the scaling relations of molecular gas depletion timescale (tdepl) and gas to stellar mass ratio (Mmol gas/M∗) of SFGs near the star formation "main-sequence" with redshift, specific star-formation rate (sSFR), and stellar mass (M∗). The CO- and dust-based scaling relations agree remarkably well. This suggests that the CO → H2 mass conversion factor varies little within ±0.6 dex of the main sequence (sSFR(ms, z, M∗)), and less than 0.3 dex throughout this redshift range. This study builds on and strengthens the results of earlier work. We find that tdepl scales as (1 + z)-0.3 × (sSFR/sSFR(ms, z, M∗))-0.5, with little dependence on M∗. The resulting steep redshift dependence of Mmol gas/M∗≈ (1 + z)3 mirrors that of the sSFR and probably reflects the gas supply rate. The decreasing gas fractions at high M∗are driven by the flattening of the SFR-M∗relation. Throughout the probed redshift range a combination of an increasing gas fraction and a decreasing depletion timescale causes a larger sSFR at constant M∗. As a result, galaxy integrated samples of the Mmol gas-SFR rate relation exhibit a super-linear slope, which increases with the range of sSFR. With these new relations it is now possible to determine Mmol gas with an accuracy of ±0.1 dex in relative terms, and ±0.2 dex including systematic uncertainties.

Published
2015

2. PHIBSS: Unified Scaling Relations of Gas Depletion Time and Molecular Gas Fractions

Author

Tacconi, L. J., primary, Genzel, R., additional, Saintonge, A., additional, Combes, F., additional, García-Burillo, S., additional, Neri, R., additional, Bolatto, A., additional, Contini, T., additional, Schreiber, N. M. Förster, additional, Lilly, S., additional, Lutz, D., additional, Wuyts, S., additional, Accurso, G., additional, Boissier, J., additional, Boone, F., additional, Bouché, N., additional, Bournaud, F., additional, Burkert, A., additional, Carollo, M., additional, Cooper, M., additional, Cox, P., additional, Feruglio, C., additional, Freundlich, J., additional, Herrera-Camus, R., additional, Juneau, S., additional, Lippa, M., additional, Naab, T., additional, Renzini, A., additional, Salome, P., additional, Sternberg, A., additional, Tadaki, K., additional, Übler, H., additional, Walter, F., additional, Weiner, B., additional, and Weiss, A., additional

Published
2018
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3. UV LUMINOSITY FUNCTIONS AT REDSHIFTSz∼ 4 TOz∼ 10: 10,000 GALAXIES FROMHSTLEGACY FIELDS

Author

Bouwens, R. J., primary, Illingworth, G. D., additional, Oesch, P. A., additional, Trenti, M., additional, Labbé, I., additional, Bradley, L., additional, Carollo, M., additional, van Dokkum, P. G., additional, Gonzalez, V., additional, Holwerda, B., additional, Franx, M., additional, Spitler, L., additional, Smit, R., additional, and Magee, D., additional

Published
2015
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4. METAL DEFICIENCY IN CLUSTER STAR-FORMING GALAXIES ATZ= 2

Author

Valentino, F., primary, Daddi, E., additional, Strazzullo, V., additional, Gobat, R., additional, Onodera, M., additional, Bournaud, F., additional, Juneau, S., additional, Renzini, A., additional, Arimoto, N., additional, Carollo, M., additional, and Zanella, A., additional

Published
2015
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9. DEEP NEAR-INFRARED SPECTROSCOPY OF PASSIVELY EVOLVING GALAXIES ATz≳ 1.4

Author

Onodera, M., primary, Renzini, A., additional, Carollo, M., additional, Cappellari, M., additional, Mancini, C., additional, Strazzullo, V., additional, Daddi, E., additional, Arimoto, N., additional, Gobat, R., additional, Yamada, Y., additional, McCracken, H. J., additional, Ilbert, O., additional, Capak, P., additional, Cimatti, A., additional, Giavalisco, M., additional, Koekemoer, A. M., additional, Kong, X., additional, Lilly, S., additional, Motohara, K., additional, Ohta, K., additional, Sanders, D. B., additional, Scoville, N., additional, Tamura, N., additional, and Taniguchi, Y., additional

Published
2012
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10. THE zCOSMOS-SINFONI PROJECT. I. SAMPLE SELECTION AND NATURAL-SEEING OBSERVATIONS

Author

Mancini, C., primary, Förster Schreiber, N. M., additional, Renzini, A., additional, Cresci, G., additional, Hicks, E. K. S., additional, Peng, Y., additional, Vergani, D., additional, Lilly, S., additional, Carollo, M., additional, Pozzetti, L., additional, Zamorani, G., additional, Daddi, E., additional, Genzel, R., additional, Maraston, C., additional, McCracken, H. J., additional, Tacconi, L., additional, Bouché, N., additional, Davies, R., additional, Oesch, P., additional, Shapiro, K., additional, Mainieri, V., additional, Lutz, D., additional, Mignoli, M., additional, and Sternberg, A., additional

Published
2011
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11. A z = 1.82 ANALOG OF LOCAL ULTRA-MASSIVE ELLIPTICAL GALAXIES

Author

Onodera, M., primary, Daddi, E., additional, Gobat, R., additional, Cappellari, M., additional, Arimoto, N., additional, Renzini, A., additional, Yamada, Y., additional, McCracken, H. J., additional, Mancini, C., additional, Capak, P., additional, Carollo, M., additional, Cimatti, A., additional, Giavalisco, M., additional, Ilbert, O., additional, Kong, X., additional, Lilly, S., additional, Motohara, K., additional, Ohta, K., additional, Sanders, D. B., additional, Scoville, N., additional, Tamura, N., additional, and Taniguchi, Y., additional

Published
2010
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12. Is There Really a Black Hole at the Center of NGC 4041? Constraints from Gas Kinematics

Author

Marconi, A., primary, Axon, D. J., additional, Capetti, A., additional, Maciejewski, W., additional, Atkinson, J., additional, Batcheldor, D., additional, Binney, J., additional, Carollo, M., additional, Dressel, L., additional, Ford, H., additional, Gerssen, J., additional, Hughes, M. A., additional, Macchetto, D., additional, Merrifield, M. R., additional, Scarlata, C., additional, Sparks, W., additional, Stiavelli, M., additional, Tsvetanov, Z., additional, and van der Marel, R. P., additional

Published
2003
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13. WFC3 GRISM CONFIRMATION OF THE DISTANT CLUSTER Cl J1449+0856 AT ⟨z⟩ = 2.00: QUIESCENT AND STAR-FORMING GALAXY POPULATIONS

Author

Marcella Carollo, Raphael Gobat, Alvio Renzini, Andrea Cimatti, Veronica Strazzullo, Alexis Finoguenov, Masato Onodera, Emanuele Daddi, Claudia Scarlata, Nobuo Arimoto, Gobat R., Strazzullo V., Daddi E., Onodera M., Carollo M., Renzini A., Finoguenov A., Cimatti A., Scarlata C., Arimoto N., Gobat, R, Strazzullo, V, Daddi, E, Onodera, M, Carollo, M, Renzini, A, Finoguenov, A, Cimatti, A, Scarlata, C, and Arimoto, N

Subjects
Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Field (physics), 010308 nuclear & particles physics, Cosmology: observations, Galaxies: high-redshift, Galaxies: statistics, Large-scale structure of Universe, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Galaxy, Redshift, Grism, Space and Planetary Science, 0103 physical sciences, Cluster (physics), Spectroscopy, 010303 astronomy & astrophysics, Wide Field Camera 3, Astrophysics - Cosmology and Nongalactic Astrophysics, Line (formation)
Abstract

We present deep Hubble Space Telescope Wide Field Camera 3 slitless spectroscopic observations of the distant cluster Cl J1449+0856. These cover a single pointing with 18 orbits of G141 spectroscopy and F140W imaging, allowing us to derive secure redshifts down to m_140~25.5 AB and 3sigma line fluxes of 5*10^(-18) erg/s/cm^2. In particular, we were able to spectroscopically confirm 12 early-type galaxies in the field up to z~3, 6 of which in the cluster core, which represents the first direct spectroscopic confirmation of passive galaxies in a z=2 cluster environment. With 140 redshifts in a ~6 arcmin^2 field, we can trace the spatial and redshift galaxy distribution in the cluster core and background field. We find two strong peaks at z=2.00 and z=2.07, where only one was seen in our previously published ground-based data. Thanks to the spectroscopic confirmation of the cluster ETGs, we can now re-evaluate the redshift of Cl J1449+0856 at z=2.00, rather than z=2.07, with the background overdensity being revealed to be sparse and "sheet"-like. This presents an interesting case of chance alignment of two close yet unrelated structures, each one preferentially selected by different observing strategies. With 6 quiescent or early-type spectroscopic members and 20 star-forming ones, Cl J1449+0856 is now reliably confirmed to be at z=2.00. The identified members can now allow for a detailed study of galaxy properties in the densest environment at z=2., 12 pages, 13 figures

Published
2013

14. DEEP NEAR-INFRARED SPECTROSCOPY OF PASSIVELY EVOLVING GALAXIES ATz≳ 1.4

Author

Olivier Ilbert, David B. Sanders, Nobuo Arimoto, Masato Onodera, H. J. McCracken, Emanuele Daddi, S. Lilly, Anton M. Koekemoer, Alessandro Cimatti, Kouji Ohta, Kentaro Motohara, Alvio Renzini, Xu Kong, Michele Cappellari, Yoshiaki Taniguchi, M. Carollo, Yoshihiko Yamada, N. Z. Scoville, Veronica Strazzullo, Peter Capak, C. Mancini, Raphael Gobat, Naoyuki Tamura, Mauro Giavalisco, Onodera M., Renzini A., Carollo M., Cappellari M., Mancini C., Strazzullo V., Daddi E., Arimoto N., Gobat R., Yamada Y., McCracken H. J., Ilbert O., Capak P., Cimatti A., Giavalisco M., Koekemoer A. M., Kong X., Lilly S., Motohara K., Ohta K., Sanders D. B., Scoville N., Tamura N., and Taniguchi Y.

Subjects
Effective radius, Physics, Stellar mass, 010308 nuclear & particles physics, Star formation, Continuum (design consultancy), Velocity dispersion, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Spectral line, Galaxy, Redshift, galaxies: evolution, galaxies: formation, galaxies: high-redshift, Space and Planetary Science, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

[Abridged] We present the results of new near-IR spectroscopic observations of passive galaxies at z>1.4 in a concentration of BzK-selected galaxies in the COSMOS field. The observations have been conducted with Subaru/MOIRCS, and have resulted in absorption lines and/or continuum detection for 18 out of 34 objects. This allows us to measure spectroscopic redshifts for a sample almost complete to K(AB)=21. COSMOS photometric redshifts are found in fair agreement overall with the spectroscopic redshifts, with a standard deviation of ~0.05; however, ~30% of objects have photometric redshifts systematically underestimated by up to ~25%. We show that these systematic offsets in photometric redshifts can be removed by using these objects as a training set. All galaxies fall in four distinct redshift spikes at z=1.43, 1.53, 1.67 and 1.82, with this latter one including 7 galaxies. SED fits to broad-band fluxes indicate stellar masses in the range of ~4-40x10^10Msun and that star formation was quenched ~1 Gyr before the cosmic epoch at which they are observed. The spectra of several individual galaxies have allowed us to measure their Hdelta_F and Dn4000 indices, which confirms their identification as passive galaxies, as does a composite spectrum resulting from the coaddition of 17 individual spectra. The effective radii of the galaxies have been measured on the HST/ACS F814W image, confirming the coexistence at these redshifts of passive galaxies which are substantially more compact than their local counterparts with others that follow the local size-stellar mass relation. For the galaxy with best S/N spectrum we were able to measure a velocity dispersion of 270+/-105 km/s, indicating that this galaxy lies closely on the virial relation given its stellar mass and effective radius., Comment: 26 pages, 24 figures, 5 tables, in emulateapj format; accepted for publication in The Astrophysical Journal

Published
2012

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