English
Related papers

Related papers: SCG0018-4854: a young and dynamic compact group I.…

200 papers

The presence of young stars, aged around several million years and situated within the range of $\sim 0.04-1$ pc from our Galactic center raises a question about their origins and dynamical evolutions. Their kinematics provide an…

Astrophysics of Galaxies · Physics 2024-04-29 Xiao Fan , Qingwen Wu , Jiancheng Wu , Xiangli Lei , Mengye Wang , Fulin Li

We present the results of the classification of spectral activity types for 193 galaxies from a new sample of 49 compact groups of galaxies in the southern hemisphere (SCGs). This sample was selected in automated fashion from a digitized…

Astrophysics · Physics 2009-10-31 Roger Coziol , Angela Iovino , Reinaldo R. de Carvalho

We present early results from the analysis of HST imaging observations for several pairs of interacting galaxies. We include two cases that were specifically chosen to represent a strong early (young) encounter (Arp 81 = NGC 6621/6622) and…

Astrophysics · Physics 2007-05-23 K. D. Borne , W. C. Keel , P. N. Appleton , C. Struck , R. A. Lucas , A. Schultz

BV-bands photometric data obtained at the 6-m telescope of the Special Astrophysical Observatory are used to analyze the structure of 13 large disk galaxies in the NGC 80 group. Nine of the 13 galaxies under consideration are classified by…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Marina A. Startseva , Olga K. Sil'chenko , Alexei V. Moiseev

We present new Fabry-Perot observations for a sample of 42 galaxies located in twelve compact groups of galaxies: HCG 1, HCG 14, HCG 25, HCG 44, HCG 53, HCG 57, HCG 61, HCG 69, HCG 93, VV 304, LGG 455 and Arp 314. From the 42 observed…

Astrophysics of Galaxies · Physics 2015-06-19 S. Torres-Flores , P. Amram , C. Mendes de Oliveira , H. Plana , C. Balkowski , M. Marcelin , D. Olave-Rojas

We present a new sample of bright galaxy pairs extracted applying an objective selection code to UZC catalog.The sample is volume limited to M$_{zw}$ = -18.9 +5 log ${\it h}$ and contains 89 galaxy pairs.We analyze the kinematical,…

Astrophysics · Physics 2009-11-11 P. Focardi , V. Zitelli , S. Marinoni , B. Kelm

We investigate the interaction effects in the stellar and gas kinematics, stellar population and ionized gas properties in the interacting galaxy pair AM1209-292, composed by NGC4105 and NGC4106. The data consist of long-slit spectra in the…

Astrophysics of Galaxies · Physics 2021-05-26 Deise A. Rosa , Irapuan Rodrigues , Ângela Cristina Krabbe , André Castro Milone , Sarita Carvalho

Interacting galaxies provide us with an excellent laboratory for studying a number of physical phenomena associated with these processes. In this paper, we present a spectroscopic and kinematic analysis of the interacting galaxy NGC 4656…

This paper is part of a series in which we perform a systematic comparison of the galaxy properties inhabiting compact groups, loose groups and the field. In this paper we focus our study to the age and the star formation in galaxies. For…

Astrophysics of Galaxies · Physics 2014-12-24 Valeria Coenda , Hernán Muriel , Héctor J. Martínez

We report on kinematic observations of Ha emission line from four late-type galaxies of Hickson Compact Group 16 (H16a,b,c and d) obtained with a scanning Fabry-Perot interferometer and samplings of 16 km/s and 1". The velocity fields show…

We have redefined group membership of six southern galaxy groups in the local universe (mean cz < 2000 km/s) based on new redshift measurements from our recently acquired Anglo-Australian Telescope 2dF spectra. For each group, we…

Astrophysics · Physics 2009-11-11 P. Firth , E. Evstigneeva , J. B. Jones , M. J. Drinkwater , S. Phillipps , M. D. Gregg

Stellar kinematic groups (SKG) are kinematically coherent groups of stars that share a common origin. We have compiled (Montes et al. 1999; 2000) a sample of late-type stars of previously established members and possible new candidates to…

Astrophysics · Physics 2016-08-30 D. Montes

We study a peculiar galaxy NGC 90, a pair member of interacting system Arp 65 (NGC 90/93), using the long-slit spectral observations carried out at the Russian 6m telescope BTA and the available SDSS photometric data. This galaxy…

Astrophysics of Galaxies · Physics 2020-08-12 Anatoly V. Zasov , Anna S. Saburova , Oleg V. Egorov , Alexey V. Moiseev

We present multiband photometric observations of three spiral galaxies selected in a sample suited for the study of young stellar groupings and their relationship with the parent galaxy and the galactic environment. Star forming regions…

Astrophysics · Physics 2007-05-23 P. Battinelli , R. Capuzzo-Dolcetta , P. W. Hodge , A. Vicari , T. K. Wyder

Context. Ultra-diffuse galaxies (UDGs) are an intriguing population of galaxies. Despite their dwarf-like stellar masses and low surface brightness, they have large half-light radii and exhibit a diverse range of globular cluster (GC)…

We present kinematic observations of H$\alpha$ emission for two early-type galaxies and one disk system, members of the Hickson compact group 90 (HCG 90) obtained with a scanning Fabry-Perot interferometer and samplings of 16 $km$ $s^{-1}$…

Astrophysics · Physics 2019-08-15 H. Plana , Cl. Mendes de Oliveira , P. Amram , J. Boulesteix

Galaxies in Hickson Compact Group 91 (HCG 91) were observed with the WiFeS integral field spectrograph as part of our ongoing campaign targeting the ionized gas physics and kinematics inside star forming members of compact groups. Here, we…

Astrophysics of Galaxies · Physics 2015-05-20 F. P. A. Vogt , M. A. Dopita , S. Borthakur , L. Verdes-Montenegro , T. M. Heckman , M. S. Yun , K. C. Chambers

We found a new, very compact group of galaxies characterized by a median projected separation between galaxies of 5.2/h kpc and a very low velocity dispersion. All the observed member galaxies show emission line spectra and a disturbed…

Astrophysics · Physics 2007-05-23 S. Temporin , R. Weinberger , F. Kerber

[Abridged] The environment where galaxies are found heavily influences their evolution. Close groupings, like the cores of galaxy clusters or compact groups, evolve in ways far more dramatic than their isolated counterparts. We have…

Compact group galaxies often appear unaffected by their unusually dense environment. Closer examination can, however, reveal the subtle, cumulative effects of multiple galaxy interactions. Hickson Compact Group (HCG) 59 is an excellent…