English
Related papers

Related papers: Disclosing Submillimeter Galaxy Formation: Mergers…

200 papers

We examine the dependence of the fraction of galaxies containing pseudo bulges on environment for a flux limited sample of $\sim$5000 SDSS galaxies. We have separated bulges into classical and pseudo bulge categories based on their position…

Astrophysics of Galaxies · Physics 2017-02-08 Preetish K. Mishra , Yogesh Wadadekar , Sudhanshu Barway

In the context of pre-processing -- a scenario in which galaxies quench their star formation within substructures before falling into clusters -- we investigate the impact of environment on the physical and morphological properties of…

We dissect giant Sc-Scd galaxies with Hubble Space Telescope photometry and Hobby-Eberly Telescope spectroscopy. We use HET's High Resolution Spectrograph (resolution = 15,000) to measure stellar velocity dispersions in the nuclear star…

Astrophysics of Galaxies · Physics 2015-05-20 John Kormendy , Niv Drory , Ralf Bender , Mark E. Cornell

We present optical morphologies obtained from deep HST and ground-based images for galaxies selected from the first sub-millimeter survey of the distant Universe. Our sample comprises galaxies detected in deep 850-micron continuum maps of…

Astrophysics · Physics 2015-06-24 Ian Smail , R. J. Ivison , A. W. Blain , J. -P. Kneib

We revisit the evolution of galaxy morphology in the COSMOS field over the redshift range $0.2\leq z \leq 1$, using a large and complete sample of 33,605 galaxies with a stellar mass of log($M_{\ast}$/M$_{\odot} )>9.5$ with significantly…

Astrophysics of Galaxies · Physics 2023-09-29 Jian Ren , Nan Li , F. S. Liu , Qifan Cui , Mingxiang Fu , Xian Zhong Zheng

We measure the merger fraction of massive galaxies using the UltraVISTA/COSMOS $Ks$-band selected catalog, complemented with the deeper, higher resolution 3DHST+CANDELS catalog selected in the HST/WFC3 $H$-band, presenting the largest…

Astrophysics of Galaxies · Physics 2016-11-09 Allison W. S. Man , Andrew W. Zirm , Sune Toft

Submillimetre galaxies (SMGs) are among the most luminous dusty galaxies in the Universe, but their true nature remains unclear; are SMGs the progenitors of the massive elliptical galaxies we see in the local Universe, or are they just a…

We present observations of pseudobulges in S0 and spiral galaxies using imaging data taken with the Spitzer Infra-Red Array Camera. We have used 2-d bulge-disk-bar decomposition to determine structural parameters of 185 S0 galaxies and 31…

Astrophysics of Galaxies · Physics 2015-06-24 Kaustubh Vaghmare , Sudhanshu Barway , Smita Mathur , Ajit K. Kembhavi

The details of bulge formation via collapse, mergers, secular processes or their interplay remain unresolved. To start answering this question and quantify the importance of distinct mechanisms, we mapped a sample of three galactic bulges…

Hubble Space Telescope (HST) imaging of four rich, X-ray luminous, galaxy clusters (0.33<z<0.83) is used to produce quantitative morphological measurements for galaxies in their fields. Catalogs of these measurements are presented for 1642…

We measure the dust and gas content of the three sub-millimeter galaxies (SMGs) in the GN20 proto-cluster at $z=4.05$ using new IRAM Plateau de Bure interferometer (PdBI) CO(4-3) and 1.2-3.3 mm continuum observations. All these three SMGs…

We present an analysis of the JWST NIRCam and MIRI morphological properties of 80 massive ($\log_{10}(M_\ast[M_{\odot}])$=11.2$\pm$0.1) dusty star-forming galaxies at $z$$=$2.7$^{+1.2}_{-0.7}$, identified as sub-millimetre galaxies (SMGs)…

We present a study of galaxy mergers and the influence of environment in the Abell 901/902 supercluster at z~0.165. We use HST ACS F606W data from the STAGES survey, COMBO-17, Spitzer 24um, and XMM-Newton X-ray data. Our analysis utilizes…

We investigate colors and mass-to-light ratios ($M/L$s) of the bulges and disks for 28 nearby spiral galaxies with various morphological types of Sab to Scd, using images in optical and near-infrared ($V$, $I$, and $J$) bands and published…

Astrophysics · Physics 2015-05-13 Akira Yoshino , Takashi Ichikawa

Combining the catalogue of galaxy morphologies in the COSMOS field and the sample of H$\alpha$ emitters at redshifts $z=0.4$ and $z=0.84$ of the HiZELS survey, we selected $\sim$ 220 star-forming bulgeless systems (S\'ersic index $n \leq…

Astrophysics of Galaxies · Physics 2018-01-31 M. Grossi , C. A. C. Fernandes , D. Sobral , J. Afonso , E. Telles , L. Bizzocchi , A. Paulino-Afonso , I. Matute

It is often claimed that overdensities of (or even individual bright) submillimetre-selected galaxies (SMGs) trace the assembly of the most-massive dark matter structures in the Universe. We test this claim by performing a counts-in-cells…

Astrophysics of Galaxies · Physics 2015-08-03 Tim B. Miller , Christopher C. Hayward , Scott C. Chapman , Peter S. Behroozi

We analyze the size evolution of $16000$ star-forming galaxies (SFGs) and $5000$ quiescent galaxies (QGs) with mass $M_*>10^{9.5}M_\odot$ at $0.1<z<0.9$ from the COSMOS field using deep CLAUDS+HSC imaging in two rest-frame wavelengths,…

Structural analysis has been performed for a sample of 15 Southern early-type disk galaxies, mainly S0s, using high resolution $K_s$-band images. The galaxies are mostly barred and many of them show multiple structures including bars and…

Astrophysics · Physics 2009-11-11 E. Laurikainen , H. Salo , R. Buta , J. Knapen , T. Speltincx , D. Block

(Abridged) We present a morphological analysis of 17 X-ray selected clusters at z~0.25, imaged uniformly with HST WFPC2. Eight of these clusters have low X-ray luminosities (<10^{44} erg/s), while the remaining nine clusters have…

Astrophysics · Physics 2009-11-07 Michael Balogh , Ian Smail , R. Bower , B. Ziegler , G. Smith , R. Davies , A. Gaztelu , J. -P. Kneib , H. Ebeling
‹ Prev 1 3 4 5 6 7 10 Next ›