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相关论文: Interacting galaxies: co-rotating and counter-rota…

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We study galaxy pair samples selected from the Sloan Digital Sky Survey (SDSS-DR7) and we perform an analysis of minor and major mergers with the aim of investigating the dependence of galaxy properties on interactions. We build a galaxy…

宇宙学与河外天体物理 · 物理学 2015-06-03 Diego G. Lambas , Sol Alonso , Valeria Mesa , Ana Laura O'Mill

We study star formation in a sample of 1204 galaxies in minor (| \Delta m_z | \geq 2) pairs and compact groups, drawn from the Sloan Digital Sky Survey Data Release 5 (SDSS DR5). We analyze an analogous sample of 2409 galaxies in major (|…

天体物理学 · 物理学 2008-11-26 Deborah Freedman Woods , Margaret J. Geller

We have searched for compact stellar structures within 17 tidal tails in 13 different interacting galaxies using F606W- and F814W- band images from the Wide Field Planetary Camera 2 (WFPC2) on the Hubble Space Telescope (HST). The sample of…

We have used V- and I- band images from the Hubble Space Telescope (HST) to identify compact stellar clusters within the tidal tails of twelve different interacting galaxies. The seventeen tails within our sample span a physical parameter…

We present the results of our analysis of the geometrical tidal tail characteristics for nearby and distant interacting galaxies. The sample includes more than two hundred nearby galaxies and about seven hundred distant ones. The distant…

宇宙学与河外天体物理 · 物理学 2015-05-30 Y. H. Mohamed , V. P. Reshetnikov , N. Ya. Sotnikova

We present the results of our analysis of the frequencies of galaxies with tidal tails and M51-type galaxies in several deep fields of the Hubble Space Telescope (HDF-N, HDF-S, HUDF, GOODS, GEMS). In total, we have found about seven hundred…

宇宙学与河外天体物理 · 物理学 2015-05-30 V. P. Reshetnikov , Y. H. Mohamed

This paper has been withdrawn by the author. A computer simulation of two galaxies, passing in parabolic orbits, was made to show their interaction and the tidal patterns formed. The galaxies were modelled as a point masses surrounded by 5…

星系天体物理 · 物理学 2012-10-31 Timothy Harrison

Research on dual active galactic nuclei (AGNs) is crucial for understanding the coevolution of galaxies and supermassive black holes. However, the current number of dual AGNs remains scarce. In this work, we selected 173 new dual AGNs, 4…

星系天体物理 · 物理学 2026-01-12 Zhuojun Deng , Cheng Xiang , Qihang Chen , Liang Jing , Xingyu Zhu , Jianghua Wu

We present Spitzer mid-infrared images from a survey of three dozen pre-merger strongly interacting galaxy pairs selected from the Arp Atlas. The global mid-infrared colors of these galaxies and their tidal tails and bridges are similar to…

天体物理学 · 物理学 2007-05-23 B. J. Smith , C. Struck , M. Hancock , P. Appleton , W. Reach , V. Charmandaris

We measure the radial $g-i$ colour profiles of $\sim$32,000 galaxies drawn from the Hyper Suprime-Cam Subaru Strategic Program optical imaging survey, including 1415 exhibiting tidal features. We compare the colour profiles of galaxies with…

星系天体物理 · 物理学 2026-01-30 A. Desmons , S. Brough , L. Canepa , A. Khalid

We study star formation in a sample of 345 galaxies in 167 pairs and compact groups drawn from the original CfA2 Redshift Survey and from a follow-up search for companions. We construct our sample with attention to including pairs with…

天体物理学 · 物理学 2008-11-26 Deborah Freedman Woods , Margaret J. Geller , Elizabeth J. Barton

We present deep optical B, V, R images of a sample of 10 interacting systems which were selected for their resemblance to disturbed galaxies at high redshift. Photometry is performed on knots in the tidal features of the galaxies. We…

天体物理学 · 物理学 2007-05-23 Peter M. Weilbacher , P. -A. Duc , U. Fritze-v. Alvensleben , P. Martin , K. J. Fricke

We have used the GALEX ultraviolet telescope to study stellar populations and star formation morphology in a well-defined sample of 42 nearby optically-selected pre-merger interacting galaxy pairs. Galaxy interactions were likely far more…

宇宙学与河外天体物理 · 物理学 2010-01-08 Beverly J. Smith , Mark L. Giroux , Curtis Struck , Mark Hancock , Sabrina Hurlock

We analyzed the effects of having a close companion on the star formation activity of galaxies in 8K galaxy pair catalog selected from the 2dFGRS. We found that, statistically, galaxies with $r_{\rm p} < 25 {\rm h^{-1}}$ kpc and $\Delta V <…

天体物理学 · 物理学 2007-05-23 Patricia B. Tissera , Diego G. Lambas , M. Sol Alonso , Georgina Coldwell

Tidal interactions between galaxies often give rise to tidal tails, which can harbor concentrations of stars and interstellar gas resembling dwarf galaxies. Some of these tidal dwarf galaxies (TDGs) have the potential to detach from their…

Tidal tails are created in major mergers involving disk galaxies. How the tidal tails trace the assembly history of massive galaxies remains to be explored. We identify a sample of 461 merging galaxies with long tidal tails from 35076…

星系天体物理 · 物理学 2016-12-07 Z. Z. Wen , X. Z. Zheng

We found 25 galaxies with probable tidal tails in the Hubble Deep Fields North and South at z=0.5-1.5. General characteristics of the selected tidal features are very close to characteristics of tidal tails of local interacting galaxies.…

天体物理学 · 物理学 2007-05-23 Vladimir P. Reshetnikov

We present results from a survey of dwarf galaxy candidates in the vicinity of strongly interacting galaxies. The goal of the survey was a test of the hypothesis that massive condensations of stars and HI in tidal tails of large interacting…

天体物理学 · 物理学 2011-05-23 E. J. Delgado-Donate , C. Munoz-Tunon , H. J. Deeg , J. Iglesias-Paramo

We present a statistical observational study of the tidal dwarf (TD) population in the nearby Universe, by exploiting a large, homogeneous catalogue of galaxy mergers compiled from the SDSS. 95% of TD-producing mergers involve two spiral…

宇宙学与河外天体物理 · 物理学 2015-05-30 Sugata Kaviraj , Daniel Darg , Chris Lintott , Kevin Schawinski , Joseph Silk

We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range of projected separations (r_p < 80 h_{70}^{-1} kpc),…

宇宙学与河外天体物理 · 物理学 2015-05-20 David R. Patton , Sara L. Ellison , Luc Simard , Alan W. McConnachie , J. Trevor Mendel
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