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相关论文: The discovery of a giant debris arc in the Coma Cl…

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Although the existence of a faint background of starlight in the core of the Coma cluster has been well established (1,2), its origin is uncertain. This vast sea of stars could have formed outside the galaxies, using gas left over from the…

天体物理学 · 物理学 2009-10-31 Michael D. Gregg , Michael J. West

Using N-body numerical simulations, we examine possible mechanisms for the origin of the intracluster starlight features recently discovered in the Coma cluster of galaxies. We show that tidal interactions of a ``normal'' elliptical galaxy…

天体物理学 · 物理学 2009-10-31 Vladimir Korchagin , Toshio Tsuchiya , Shoken M. Miyama

We present the results of a search for low surface brightness galaxies (hereafter LSBs) in the Coma cluster. Bernstein et al. report on deep CCD observations in R of a 7.5 by 7.5 arcminute region in the core of the Coma cluster, and we…

天体物理学 · 物理学 2009-10-28 M. P. Ulmer , G. M. Bernstein , D. R. Martin , R. C. Nichol , J. L. Pendleton , J. A. Tyson

We report the discovery of 47 low surface brightness objects in deep images of a 3 x 3 degree field centered on the Coma cluster, obtained with the Dragonfly Telephoto Array. The objects have central surface brightness mu(g,0) ranging from…

星系天体物理 · 物理学 2015-06-23 Pieter van Dokkum , Roberto Abraham , Allison Merritt , Jielai Zhang , Marla Geha , Charlie Conroy

Deep images of the Centaurus and Coma clusters reveal two spectacular arcs of diffuse light that stretch for over 100 kpc, yet are just a few kpc wide. At a surface brightness of m_b \sim 27-28th arcsec^-2, the Centaurus arc is the most…

天体物理学 · 物理学 2009-10-31 Carlos Calcaneo-Roldan , Ben Moore , J. Bland-Hawthorn , David Malin , Elaine M. Sadler

In the deep narrow band image of the Coma Cluster taken with Suprime-Cam of the Subaru telescope, we found an extremely long and narrow (~ 60 kpc x 2 kpc) Halpha emitting region associated with a poststarburst galaxy (D100). Follow up…

Environmental effects have an important influence on cluster galaxies, but studies at very faint magnitudes (R>21) are almost exclusively based on imaging. We present here a very deep spectroscopic survey of galaxies on the line of sight to…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Adami , V. Le Brun , A. Biviano , F. Durret , F. Lamareille , R. Pello , O. Ilbert , A. Mazure , R. Trilling , M. P. Ulmer

The Coma cluster, embedded in a cosmic filament, is a complex and dynamically active structure in the local Universe. Applying a density-based member selection dbscan to data from the Sloan Digital Sky Survey (SDSS), we identify cluster…

宇宙学与河外天体物理 · 物理学 2026-04-02 David Benisty , Jenny Wagner , Sandeep Haridasu , Paolo Salucci

We report the discovery of an arc-like object 27" from the center of the cD galaxy in the redshift $z=0.066$ cluster A2124. Observations with the Keck II telescope reveal that the object is a background galaxy at $z=0.573$, apparently…

天体物理学 · 物理学 2009-10-30 John P. Blakeslee , Mark R. Metzger

We present a catalogue of low surface brightness (LSB) galaxies in the Coma cluster obtained from deep Subaru/Suprime-Cam V and R-band imaging data within a region of $\sim$4 deg$^2$. We increase the number of LSB galaxies presented in Yagi…

星系天体物理 · 物理学 2020-06-18 Adebusola B. Alabi , Aaron J. Romanowsky , Duncan A. Forbes , Jean P. Brodie , Nobuhiro Okabe

We use ACS data from the HST Treasury survey of the Coma cluster (z~0.02) to study the properties of barred galaxies in the Coma core, the densest environment in the nearby Universe. This study provides a complementary data point for…

Detection and study of the intracluster light in rich clusters of galaxies has been a problem of long standing challenge and interest. Using the lowest surface brightness images of the Coma cluster of galaxies in the g and r bands, from the…

The hot X-ray emitting plasma in galaxy clusters is predicted to have turbulent motions which can contribute around ten percent of the cluster's central energy density. We report deep Chandra X-ray Observatory observations of the Coma…

宇宙学与河外天体物理 · 物理学 2013-09-20 J. S. Sanders , A. C. Fabian , E. Churazov , A. A. Schekochihin , A. Simionescu , S. A. Walker , N. Werner

MS$\,$0451.6$-$0305 is a rich galaxy cluster whose strong lensing is particularly prominent at submm wavelengths. We combine new SCUBA-2 data with imaging from Herschel SPIRE and PACS and HST in order to try to understand the nature of the…

We have obtained 21cm images of 19 spiral galaxies in the Coma cluster, using the VLA in its C and D configurations. The sample selection was based on morphology, brightness, and optical diameters of galaxies within one Abell radius (1.2…

天体物理学 · 物理学 2009-10-31 H. Bravo-Alfaro , V. Cayatte , J. H. van Gorkom , C. Balkowski

We determine the luminosity function (LF) of galaxies in the core of the Coma cluster for M_R<=-11.4 (assuming H_0=75 km/s/Mpc), a magnitude regime previously explored only in the Local Group. Objects are counted in a deep CCD image of Coma…

天体物理学 · 物理学 2009-10-28 G. M. Bernstein , R. C. Nichol , J. A. Tyson , M. P. Ulmer , D. Wittman

We report on a search for faint (R total magnitude fainter than 21) and low surface brightness galaxies (R central surface brightness fainter than ~24) (fLSBs) in a 0.72x0.82 deg2 area centered on the Coma cluster. We analyzed deep B and R…

We describe a far infrared survey of the Coma cluster and the galaxy filament it resides within. Our survey covers an area of $\sim$150 deg$^2$ observed by $Herschel$ H-ATLAS in five bands at 100, 160, 250, 350 and 500$\mu$m. The SDSS…

We found an unusual complex of narrow blue filaments, bright blue knots, and H-alpha emitting filaments and clouds, which morphologically resembled a complex of ``fireballs,'' extending up to 80 kpc south from an E+A galaxy RB199 in the…

天体物理学 · 物理学 2009-11-13 M. Yoshida , M. Yagi , Y. Komiyama , H. Furusawa , N. Kashikawa , Y. Koyama , H. Yamanoi , T. Hattori , S. Okamura

We present evidence for a new morphologically defined form of small-scale substructure in the Coma Cluster, which we call galaxy aggregates. These aggregates are dominated by a central galaxy, which is on average three magnitudes brighter…

天体物理学 · 物理学 2009-10-30 Christopher J. Conselice , John S. Gallagher
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