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(Abridged) A robust analysis of galaxy structural parameters, based on the modeling of bulge and disk brightnesses in the BVRH bandpasses, is presented for 121 face-on and moderately inclined late-type spirals. Each surface brightness (SB)…

Astrophysics · Physics 2010-04-06 Lauren A. MacArthur , Stephane Courteau , Jon A. Holtzman

Employing the TNG100 run of the IllustrisTNG project, we characterize the environment of Low Surface Brightness Galaxies (LSBGs) across varying scales, from their associated dark matter halos to their distribution within the broader cosmic…

We report new B-band CCD surface photometry on a sample of 76 disk galaxies brighter than B_T = 14.5 mag in the Uppsala General Catalogue of Galaxies, which are confined within a volume located in the outer part of the Local Supercluster.…

Astrophysics · Physics 2009-10-30 Nanyao Y. Lu

We recently developed an automated method, auto-GMM to decompose simulated galaxies. It extracts kinematic structures in an accurate, efficient, and unsupervised way. We use auto-GMM to study the stellar kinematic structures of disk…

Astrophysics of Galaxies · Physics 2020-06-10 Min Du , Luis C. Ho , Victor P. Debattista , Annalisa Pillepich , Dylan Nelson , Dongyao Zhao , Lars Hernquist

The rotation curves of low surface brightness (LSB) galaxies suggest that they possess significantly higher mass-to-light (M/L) ratios than their high surface brightness counterparts, indicating that LSB galaxies may be dark matter…

Astrophysics · Physics 2009-11-10 Hyun-chul Lee , Brad K. Gibson , Chris Flynn , Daisuke Kawata , Michael A. Beasley

We have examined star formation in two very luminous (M_V=-22 to -23) Sc-type spiral galaxies, NGC 801 and UGC 2885, using ultra-deep Halpha images. We combine these with UBV and 2MASS JHK images and HI maps to explore the star formation…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Deidre A. Hunter , Bruce G. Elmegreen , Vera C. Rubin , Allison Ashburn , Teresa Wright , Gyula I. G. Jozsa , Christian Struve

We consider seven distant galaxies with clearly evident spiral structure from HST images. Three of these were chosen from Vogt et al. (1996) (VFP) and have measured rotational velocities. Five were chosen from the Medium Deep Survey and are…

Astrophysics · Physics 2009-10-30 A. C. Quillen , V. L. Sarajedini

Low-surface brightness galaxies (LSBGs) are defined as galaxies with central surface brightness levels fainter than the night sky, making them challenging to observe. A key open question is whether their faint appearance arises from…

Astrophysics of Galaxies · Physics 2025-10-01 D. Stoppacher , P. Tissera , Y. Rosas-Guevara , G. Galaz , J. Oñorbe

We investigate the stellar structure of massive, quiescent galaxies at z~2, based on Hubble Space Telescope/WFC3 imaging from the Early Release Science program. Our sample of 14 galaxies has stellar masses of M* > 10^{10.8} Msol and…

We have exploited the HST CANDELS WFC3/IR imaging to study the properties of (sub-)mm galaxies in GOODS-South. After using the deep radio and Spitzer imaging to identify galaxy counterparts for the (sub-)mm sources, we have used the new…

We study a sample of approximately 16,500 galaxies with I_AB <= 22.5 in the COSMOS field. Structural information on the galaxies is derived by fitting single Sersic models to their two-dimensional surface brightness distributions. We…

A photometric study of 22 disk galaxies at redshifs z=0.5-2.6 is conducted, using deep NICMOS J and H band and STIS open mode observations of the HDF-S NICMOS parallel field. Rest-frame B-profiles and (U-V) color profiles are constructed. A…

Astrophysics · Physics 2009-11-11 A. Tamm , P. Tenjes

We reconsider the problem of the age of the stellar discs of late-type Low Surface Brightness (LSB) galaxies by making use of a new IMF recently derived from numerical fluid dynamical simulations (Padoan, Nordlund and Jones, 1997). While a…

Astrophysics · Physics 2007-05-23 Paolo Padoan , Raul Jimenez , Vincenzo Antonuccio-Delogu

We cross correlate the well-defined and very complete spectroscopic Main Galaxy Sample (MGS) of 156,000 bright (r<17.5 mag) galaxies from the SDSS with 2MASS sources to explore the nature and completeness of the 2MASS K-band selection of…

Astrophysics · Physics 2009-11-11 Daniel H. McIntosh , Eric F. Bell , Martin D. Weinberg , Neal Katz

Massive galaxies at higher redshifts ($\emph{z}$ $>$ 2) show different characteristics from their local counterparts: They are compact and most likely have a disk. In this study, we trace the evolution of local massive galaxies by…

Astrophysics of Galaxies · Physics 2017-02-15 Roozbeh H. Davari , Luis C. Ho , Bahram Mobasher , Gabriela Canalizo

The Ursa Major Cluster appears to be unevolved and made up of HI-rich spiral galaxies. B,R,I,K' photometry has been obtained for 79 galaxies, including 62 in a complete sample with M(B)<-16.5 mag. The K' information is particularly…

Astrophysics · Physics 2009-10-30 R. Brent Tully , Marc A. W. Verheijen

The exact formation scenarios and evolutionary processes that led to the existence of the class of low surface brightness galaxies (LSBs) have not yet been understood completely. Since the environment of LSBs has been studied before only on…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. D. Rosenbaum , E. Krusch , D. J. Bomans , R. -J. Dettmar

Context. In spite of the numerous studies of low-luminosity galaxies in different environments, there is still no consensus about their formation scenario. In particular, a large number of galaxies displaying extremely low-surface…

Astrophysics of Galaxies · Physics 2016-11-30 A. V. Smith Castelli , F. R. Faifer , C. G. Escudero

We present the results of an analysis of Pan-STARRS1 Medium Deep Survey multi-band (g,r,i,z,y) images of a sample of 698 low-redshift disk galaxies that span broad ranges in stellar mass, star-formation rate, and bulge/disk ratio. We use…

We present a catalog of true edge-on disk galaxies automatically selected from the Seventh Data Release (DR7) of the Sloan Digital Sky Survey. A visual inspection of the $g$, $r$ and $i$ images of about 15000 galaxies allowed us to split…

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