Open Access
2MASS large galaxy atlas
Thomas H. Jarrett,S. Van Dyk,T. Chester +2 more
- Vol. 198
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Abstract:
We present the largest galaxies as seen in the near-infrared (1–2 μm), imaged with the Two Micron All Sky Survey (2MASS), ranging in angular size from 1' to 15. We highlight the 100 largest in the sample. The galaxies span all Hubble morphological types, including elliptical galaxies, normal and barred spirals, and dwarf and peculiar classes. The 2MASS Large Galaxy Atlas provides the necessary sensitivity and angular resolution to examine in detail morphologies in the near-infrared, which may be radically different from those in the optical. Internal structures such as spirals, bulges, warps, rings, bars, and star formation regions are resolved by 2MASS. In addition to large mosaic images, the atlas includes astrometric, photometric, and shape global measurements for each galaxy. A comparison of fundamental measures (e.g., surface brightness, Hubble type) is carried out for the sample and compared with the Third Reference Catalogue. We further showcase NGC 253 and M51 (NGC 5194/5195) to demonstrate the quality and depth of the data. The atlas represents the first uniform, all-sky, dust-penetrated view of galaxies of every type, as seen in the near-infrared wavelength window that is most sensitive to the dominant mass component of galaxies. The images and catalogs are available through the NASA/IPAC Extragalactic Database and Infrared Science Archive and are part of the 2MASS Extended Source Catalog.read more
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Journal ArticleDOI
The Two Micron All Sky Survey (2MASS)
Michael F. Skrutskie,Michael F. Skrutskie,Roc M. Cutri,R. Stiening,Martin D. Weinberg,Stephen E. Schneider,John M. Carpenter,Chas Beichman,R. Capps,T. Chester,J. Elias,John P. Huchra,James Liebert,C. Lonsdale,David G. Monet,Stephan D. Price,Patrick Seitzer,Thomas H. Jarrett,J. D. Kirkpatrick,John E. Gizis,E. Howard,T. Evans,John W. Fowler,L. Fullmer,Robert L. Hurt,R. M. Light,E. L. Kopan,K. A. Marsh,H. McCallon,R. Tam,S. D. Van Dyk,S. Wheelock +31 more
TL;DR: The Two Micron All Sky Survey (2MASS) as mentioned in this paper collected 25.4 Tbytes of raw imaging data from two dedicated 1.3 m diameter telescopes located at Mount Hopkins, Arizona and CerroTololo, Chile.
Journal ArticleDOI
The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
Adam Leroy,Fabian Walter,Elias Brinks,Frank Bigiel,W. J. G. de Blok,W. J. G. de Blok,Barry F. Madore,Michele D. Thornley +7 more
TL;DR: In this paper, the star formation efficiency (SFE) per unit of gas in 23 nearby galaxies and compare it with expectations from proposed star formation laws and thresholds was measured, and the authors interpreted this decline as a strong dependence of giant molecular cloud (GMC) formation on environment.
Posted Content
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies: Supplemental Material
John Kormendy,Luis C. Ho +1 more
TL;DR: Kormendy and Ho as mentioned in this paper proposed a method to estimate the BH masses for galaxies with active nuclei (AGNs) based on the observational criteria that are used to classify classical and pseudo bulges.
Journal ArticleDOI
Secular Evolution and the Formation of Pseudobulges in Disk Galaxies
TL;DR: In the far future, evolution will mostly be secular, the slow rearrangement of energy and mass that results from interactions involving collective phenomena such as bars, oval disks, spiral structure, and triaxial dark halos as mentioned in this paper.
Journal ArticleDOI
The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
TL;DR: In this paper, the authors explored the impact of uncertainties in key phases of stellar evolution and the IMF on the derived physical properties of galaxies and the expected luminosity evolution for a passively evolving set of stars.
References
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Journal ArticleDOI
The Two Micron All Sky Survey (2MASS)
Michael F. Skrutskie,Michael F. Skrutskie,Roc M. Cutri,R. Stiening,Martin D. Weinberg,Stephen E. Schneider,John M. Carpenter,Chas Beichman,R. Capps,T. Chester,J. Elias,John P. Huchra,James Liebert,C. Lonsdale,David G. Monet,Stephan D. Price,Patrick Seitzer,Thomas H. Jarrett,J. D. Kirkpatrick,John E. Gizis,E. Howard,T. Evans,John W. Fowler,L. Fullmer,Robert L. Hurt,R. M. Light,E. L. Kopan,K. A. Marsh,H. McCallon,R. Tam,S. D. Van Dyk,S. Wheelock +31 more
TL;DR: The Two Micron All Sky Survey (2MASS) as mentioned in this paper collected 25.4 Tbytes of raw imaging data from two dedicated 1.3 m diameter telescopes located at Mount Hopkins, Arizona and CerroTololo, Chile.
Journal ArticleDOI
SExtractor: Software for source extraction
E. Bertin,E. Bertin,S. Arnouts +2 more
TL;DR: The SExtractor ( Source Extractor) as mentioned in this paper is an automated software that optimally detects, deblends, measures and classifies sources from astronomical images, which is particularly suited to the analysis of large extragalactic surveys.
Journal ArticleDOI
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
John Kormendy,Luis C. Ho +1 more
TL;DR: In this paper, supermassive black holes (BHs) have been found in 85 galaxies by dynamical modeling of spatially resolved kinematics, and it has been shown that BHs and bulges coevolve by regulating each other's growth.
Journal ArticleDOI
Dwarf galaxies of the local group
TL;DR: The Local Group dwarfs offer a unique window to the detailed properties of the most common type of galaxy in the Universe as mentioned in this paper. But, the local group dwarfs are not suitable for direct observation.
Journal ArticleDOI
The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
Adam Leroy,Fabian Walter,Elias Brinks,Frank Bigiel,W. J. G. de Blok,W. J. G. de Blok,Barry F. Madore,Michele D. Thornley +7 more
TL;DR: In this paper, the star formation efficiency (SFE) per unit of gas in 23 nearby galaxies and compare it with expectations from proposed star formation laws and thresholds was measured, and the authors interpreted this decline as a strong dependence of giant molecular cloud (GMC) formation on environment.