Showing 2016 · astro-ph.GAShow all

55 papers · 2 filters

astro-ph.GA2016★ 29 cited

In and out star formation in z~1.5 quiescent galaxies from rest-frame UV spectroscopy and the far-infrared

Raphael Gobat, Emanuele Daddi, Veronica Strazzullo +18

We present a sample of 34 spectroscopically confirmed BzK-selected ~1e11 Msun quiescent galaxies (pBzK) in the COSMOS field. The targets were initially observed with VIMOS on the V…

astro-ph.GA2016★ 26 cited

Globular Clusters As Tracers of Fine Structure in the Dramatic Shell Galaxy NGC 474

Sungsoon Lim, Eric W. Peng, Pierre-Alain Duc +7

Globular clusters (GCs) are some of the most visible tracers of the merging and accretion history of galaxy halos. Metal-poor GCs, in particular, are thought to arrive in massive g…

astro-ph.GA2016★ 32 cited

Dense gas in low-metallicity galaxies

J. Braine, Y. Shimajiri, P. André +4

Stars form out of the densest parts of molecular clouds. Far-IR emission can be used to estimate the Star Formation Rate (SFR) and high dipole moment molecules, typically HCN, trac…

astro-ph.GA2016★ 1 cited

Measuring Diffuse Interstellar Bands with cool stars. An improved line list to model the background stellar spectra

A. Monreal-Ibero, R. Lallement

DIBs are ubiquitous in stellar spectra. Traditionally, they have been studied through their extraction from hot stars, because of their smooth continuum. In an era where there are…

astro-ph.GA2016★ 23 cited

Constraining the dark matter content of NGC 1291 using hydrodynamic gas response simulations

F. Fragkoudi, E. Athanassoula, A. Bosma

We present a pilot study on the nearby massive barred galaxy NGC 1291, in which we use dynamical modelling to constrain the disc mass-to-light ratio (M/L), thus breaking the degene…

astro-ph.GA2016★ 20 cited

The ALHAMBRA survey : band luminosity function of quiescent and star-forming galaxies at by PDF analysis

C. López-Sanjuan, E. Tempel, N. Benítez +34

Our goal is to study the evolution of the band luminosity function (LF) since using ALHAMBRA data. We used the photometric redshift and the band selection magnitude p…

astro-ph.GA2016★ 69 cited

A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations

Ektoras Pouliasis, Paola Di Matteo, Misha Haywood

In this work, two new axisymmetric models for the Galactic mass distribution are presented. Motivated by recent results, these two models include the contribution of a stellar thin…

astro-ph.GA2016★ 35 cited

Spiral-driven accretion in protoplanetary discs - III tri-dimensional simulations

Patrick Hennebelle, Geoffroy Lesur, Sébastien Fromang

Understanding how accretion proceeds in proto-planetary discs and more generally their dynamics is a crucial issue for explaining the conditions in which planets form. The role tha…

astro-ph.GA2016★ 6 cited

The interstellar medium in Andromeda's dwarf spheroidal galaxies: II. Multi-phase gas content and ISM conditions

Ilse De Looze, Maarten Baes, Diane Cormier +11

We make an inventory of the interstellar medium material in three low-metallicity dwarf spheroidal galaxies of the Local Group (NGC147, NGC185 and NGC205). Ancillary HI, CO, Spitze…

astro-ph.GA2016★ 34 cited

THE NEXT GENERATION VIRGO CLUSTER SURVEY. XIV. Shell feature early-type dwarf galaxies in the Virgo cluster

Sanjaya Paudel, Rory Smith, Pierre-Alain Duc +15

The Next Generation Virgo Cluster Survey is a deep (with a detection limit = 29~mag~arcsec in the band) optical panchromatic survey targeting the Virgo cluste…

astro-ph.GA2016★ 51 cited

Morpho-kinematics of z~1 galaxies probe the hierarchical scenario

M. Rodrigues, F. Hammer, H. Flores +2

We have studied a representative sample of intermediate-mass galaxies at z~1, observed by the kinematic survey KMOS3D. We have re-estimated the kinematical parameters from the publ…

astro-ph.GA2016★ 127 cited

High-redshift major mergers weakly enhance star formation

J. Fensch, F. Renaud, F. Bournaud +11

Galaxy mergers are believed to trigger strong starbursts. This is well assessed by observations in the local Universe. However the efficiency of this mechanism has poorly been test…

astro-ph.GA2016★ 45 cited

The Next Generation Virgo Cluster Survey (NGVS). XXIV. The Red Sequence to 10 L and Comparisons with Galaxy Formation Models

Joel C. Roediger, Laura Ferrarese, Patrick Côté +22

We use deep optical photometry from the Next Generation Virgo Cluster Survey [NGVS] to investigate the color-magnitude diagram for the galaxies inhabiting the core of this cluster.…

astro-ph.GA2016★ 160 cited

The GIRAFFE Inner Bulge Survey (GIBS) III. Metallicity distributions and kinematics of 26 Galactic bulge fields

M. Zoccali, S. Vasquez, O. A. Gonzalez +9

Several recent studies have demonstrated that the Galactic bulge hosts two components with different mean metallicities, and possibly different spatial distribution and kinematics.…

astro-ph.GA2016★ 87 cited

Evidence for strong evolution in galaxy environmental quenching efficiency between z = 1.6 and z = 0.9

Julie B. Nantais, Adam Muzzin, Remco F. J. van der Burg +7

We analyse the evolution of environmental quenching efficiency, the fraction of quenched cluster galaxies that would be star-forming if they were in the field, as a function of red…

astro-ph.GA2016

Understanding active galactic nuclei using near-infrared high angular resolution polarimetry I : MontAGN - stokes comparison

Lucas Grosset, Frédéric Marin, Damien Gratadour +5

In this first research note of a series of two, we present a comparison between two Monte Carlo radiative transfer codes: MontAGN and STOKES. Both were developed in order to better…

astro-ph.GA2016★ 36 cited

TOPoS: III. An ultra iron-poor multiple CEMP system

E. Caffau, P. Bonifacio, M. Spite +15

One of the primary objectives of the TOPoS survey is to search for the most metal-poor stars. Our search has led to the discovery of one of the most iron-poor objects known, SDSS\,…

astro-ph.GA2016★ 17 cited

Disk heating and bending instability in galaxies with counterrotation

Sergey Khoperskov, Giuseppe Bertin

With the help of high-resolution long-slit and integral-field spectroscopy observations, the number of confirmed cases of galaxies with counterrotation is increasing rapidly. The e…

astro-ph.GA2016★ 44 cited

The properties of the Malin 1 galaxy giant disk: A panchromatic view from the NGVS and GUViCS surveys

S. Boissier, A. Boselli, L. Ferrarese +9

Low surface brightness galaxies (LSBGs) represent a significant percentage of local galaxies but their formation and evolution remain elusive. They may hold crucial information for…

astro-ph.GA2016★ 3 cited

Characterizing elusive, faint dusty star-forming galaxies: a lensed, optically undetected ALMA galaxy at z~3.3

P. Santini, M. Castellano, A. Fontana +19

We present the serendipitous ALMA detection of a faint submillimeter galaxy (SMG) lensed by a foreground z~1 galaxy. By optimizing the source detection to deblend the system, we ac…

astro-ph.GA2016★ 80 cited

The Herschel Exploitation of Local Galaxy Andromeda (HELGA) VII: A SKIRT radiative transfer model and insights on dust heating

S. Viaene, M. Baes, A. Tamm +17

The radiation of stars heats dust grains in the diffuse interstellar medium and in star-forming regions in galaxies. Modelling this interaction provides information on dust in gala…

astro-ph.GA2016★ 66 cited

Highly Enriched 7Be in the ejecta of Nova Sagittarii 2015 No. 2 (V5668 Sgr) and the Galactic Lithium origin

Paolo Molaro, Luca Izzo, Elena Mason +2

We report on the evidence of highly blue-shifted resonance lines of the singly ionised isotope of 7BeII in high resolution UVES spectra of Nova Sagittarii 2015 No. 2 (V5668 Sgr). T…

astro-ph.GA2016★ 6 cited

A -band selected catalogue of objects in the ALHAMBRA survey

L. Nieves-Seoane, A. Fernandez-Soto, P. Arnalte-Mur +31

The original ALHAMBRA catalogue contained over 400,000 galaxies selected using a synthetic F814W image, to the magnitude limit AB(F814W)24.5. Given the photometric redshif…

astro-ph.GA2016★ 7 cited

NIBLES - an HI census of stellar mass selected SDSS galaxies: II. Arecibo follow-up HI observations

Z. Butcher, S. Schneider, W. van Driel +2

We obtained Arecibo HI line follow-up observations of 154 of the 2600 galaxies in the Nançay Interstellar Baryons Legacy Extragalactic Survey (NIBLES) sample. These observations ar…