Showing 2014 · astro-ph.GAShow all

95 papers · 2 filters

astro-ph.GA2014★ 12 cited

The relationship between polycyclic aromatic hydrocarbon emission and far-infrared dust emission from NGC 2403 and M83

A. G. Jones, G. J. Bendo, M. Baes +13

We examine the relation between polycyclic aromatic hydrocarbon (PAH) emission at 8 microns and far-infrared emission from hot dust grains at 24 microns and from large dust grains…

astro-ph.GA2014★ 5 cited

Recent stellar mass assembly of low-mass star-forming galaxies at redshifts 0.3 < z < 0.9

Lucía Rodríguez-Muñoz, Jesús Gallego, Camilla Pacifici +5

The epoch when low-mass star forming galaxies (LMSFGs) form the bulk of their stellar mass is uncertain. While some models predict an early formation, others favor a delayed scenar…

astro-ph.GA2014★ 72 cited

Evolution of the Milky Way with radial motions of stars and gas II. The evolution of abundance profiles from H to Ni

M. Kubryk, N. Prantzos, E. Athanassoula

We study the role of radial motions of stars and gas on the evolution of abundance profiles in the Milky Way disk. We investigate, in a parametrized way, the impact of radial flows…

astro-ph.GA2014★ 46 cited

The X-Shaped Milky Way Bulge in OGLE-III Photometry and in N-Body Models

David M. Nataf, Andrzej Udalski, Jan Skowron +11

We model the split red clump of the Galactic bulge in OGLE-III photometry, and compare the results to predictions from two N-body models. Our analysis yields precise maps of the br…

astro-ph.GA2014★ 16 cited

Combining Physical galaxy models with radio observations to constrain the SFRs of high-z dusty star forming galaxies

B. Lo Faro, L. Silva, A. Franceschini +2

We complement our previous analysis of a sample of z~1-2 luminous and ultra-luminous infrared galaxies ((U)LIRGs), by adding deep VLA radio observations at 1.4 GHz to a large data-…

astro-ph.GA2014★ 7 cited

Witnessing gas mixing in the metal distribution of the Hickson Compact Group HCG 31

S. Torres-Flores, C. Mendes de Oliveira, P. Amram +3

We present, for the first time, direct evidence that, in a merger of disk galaxies, the preexisting central metallicities will mix as a result of gas being transported in the merge…

astro-ph.GA2014★ 30 cited

Spatially resolved physical conditions of molecular gas and potential star formation tracers in M83, revealed by the Herschel SPIRE FTS

Ronin Wu, Suzanne Madden, Frédéric Galliano +19

Since the launch of the Herschel Space Observatory, our understanding about the photo-dissociation regions (PDR) has taken a step forward. In the bandwidth of the Fourier Transform…

astro-ph.GA2014★ 38 cited

Study of morphology and stellar content of the Galactic HII region IRAS 16148-5011

K. K. Mallick, D. K. Ojha, M. Tamura +3

An investigation of the IRAS 16148-5011 region - a cluster at a distance of 3.6 kpc - is presented here, carried out using multiwavelength data in near-infrared (NIR) from the 1.4m…

astro-ph.GA2014★ 282 cited

Stellar masses from the CANDELS survey: the GOODS-South and UDS fields

P. Santini, H. C. Ferguson, A. Fontana +35

We present the public release of the stellar mass catalogs for the GOODS-S and UDS fields obtained using some of the deepest near-IR images available, achieved as part of the Cosmi…

astro-ph.GA2014★ 184 cited

Evolution of the Milky Way with radial motions of stars and gas I. The solar neighborhood and the thin and thick disk

M. Kubryk, N. Prantzos, E. Athanassoula

We study the role of radial migration of stars on the chemical evolution of the Milky Way disk. In particular, we are interested in the impact of that process on the local properti…

astro-ph.GA2014★ 232 cited

The MUSE 3D view of the Hubble Deep Field South

R. Bacon, J. Brinchmann, J. Richard +35

We observed the Hubble Deep Field South with the new panoramic integral field spectrograph MUSE that we built and just commissioned at the VLT. The data cube resulting from 27 hour…

astro-ph.GA2014★ 163 cited

The evolving SFR-M_star relation and sSFR since z~5 from the VUDS spectroscopic survey

L. A. M. Tasca, O. Le Fevre, N. P. Hathi +44

We study the evolution of the star formation rate (SFR) - stellar mass (M_star) relation and specific star formation rate (sSFR) of star forming galaxies (SFGs) since a redshift z~…

astro-ph.GA2014★ 41 cited

The Mass Profile and Shape of Bars in the Spitzer Survey of Stellar Structure in Galaxies (S4G): Search for an Age Indicator for Bars

Taehyun Kim, Kartik Sheth, Dimitri A. Gadotti +24

We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6 image decompositions for 144 face-on barred galaxies from the Spitzer Survey of…

astro-ph.GA2014★ 14 cited

Globular Cluster Populations: First Results from SG Early-Type Galaxies

Dennis Zaritsky, Manuel Aravena, E. Athanassoula +14

Using 3.6m images of 97 early-type galaxies, we develop and verify methodology to measure globular cluster populations from the SG survey images. We find that 1) the ratio,…

astro-ph.GA2014★ 37 cited

Confirming the Quiescent Galaxy Population out to : A Stacking Analysis of Mid-, Far-Infrared and Radio Data

Allison W. S. Man, Thomas R. Greve, Sune Toft +15

We present stringent constraints on the average mid-, far-infrared and radio emissions of 14200 quiescent galaxies (QGs), identified out to in the COSMOS field via thei…

astro-ph.GA2014★ 195 cited

The galaxy luminosity function at z ~ 6 and evidence for rapid evolution in the bright end from z ~ 7 to 5

R. A . A. Bowler, J. S. Dunlop, R. J. McLure +8

We present the results of a search for bright (-22.7 < M_UV < -20.5) Lyman-break galaxies at z ~ 6 within a total of 1.65 square degrees of imaging in the UltraVISTA/COSMOS and UKI…

astro-ph.GA2014★ 111 cited

Planck intermediate results. XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps

Planck Collaboration, P. A. R. Ade, N. Aghanim +187

Planck observations at 353GHz provide the first fully-sampled maps of the polarized dust emission towards interstellar filaments and their backgrounds. The polarization data provid…

astro-ph.GA2014★ 41 cited

Insights into gas heating and cooling in the disc of NGC 891 from Herschel far-infrared spectroscopy

T. M. Hughes, K. Foyle, M. R. P. Schirm +15

We present Herschel PACS and SPIRE spectroscopy of the most important far-infrared cooling lines in the nearby edge-on spiral galaxy, NGC 891: [CII] 158 m, [NII] 122, 205 m,…

astro-ph.GA2014★ 166 cited

New Constraints on the Faint-end of the UV Luminosity Function at z~7-8 using the Gravitational Lensing of the Hubble Frontier Fields Cluster A2744

Hakim Atek, Johan Richard, Jean-Paul Kneib +8

Exploiting the power of gravitational lensing, the Hubble Frontier Fields (HFF) program aims at observing six massive galaxy clusters to explore the distant Universe far beyond the…

astro-ph.GA2014★ 16 cited

Quantifying the Heating Sources for Mid-infrared Dust Emissions in Galaxies: The Case of M 81

Nanyao Lu, G. J. Bendo, A. Boselli +12

With the newly available SPIRE images at 250 and 500 micron from Herschel Space Observatory, we study quantitative correlations over a sub-kpc scale among three distinct emission c…

astro-ph.GA2014★ 32 cited

The Next Generation Virgo Cluster Survey. XV. The photometric redshift estimation for background sources

A. Raichoor, S. Mei, T. Erben +28

The Next Generation Virgo Cluster Survey is an optical imaging survey covering 104 deg^2 centered on the Virgo cluster. Currently, the complete survey area has been observed in the…

astro-ph.GA2014★ 15 cited

The Herschel Virgo Cluster Survey. XVII. SPIRE point-source catalogs and number counts

Ciro Pappalardo, George J. Bendo, Simone Bianchi +19

We present three independent catalogs of point-sources extracted from SPIRE images at 250, 350, and 500 micron as a part of the Herschel Virgo Cluster Survey (HeViCS). The source p…

astro-ph.GA2014★ 1 cited

A new perspective on the interstellar cloud surrounding the Sun from UV absorption line results

Cecile Gry, Edward B. Jenkins

We offer a new, more inclusive, picture of the local interstellar medium, where it is composed of a single, monolithic cloud that surrounds the Sun in all directions. Our study of…

astro-ph.GA2014★ 72 cited

Stellar Kinematics and Structural Properties of Virgo Cluster Dwarf Early-Type Galaxies from the SMAKCED Project II. The Survey and a Systematic Analysis of Kinematic Anomalies and Asymmetries

E. Toloba, P. Guhathakurta, R. Peletier +15

We present spatially resolved kinematics and global stellar populations and mass-to-light ratios for a sample of 39 dwarf early-type (dE) galaxies in the Virgo cluster studied as p…