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Related papers: Seyfert galaxies in UZC-Compact Groups

200 papers

Context. The globular cluster (GC) system of Circinus galaxy has not been probed previously partly because of the location of the galaxy at - 3.8$^\circ$ Galactic latitude which suffers severely from interstellar extinction, stellar…

Astrophysics of Galaxies · Physics 2023-02-01 C. Obasi , M. Gómez , D. Minniti , J. Alonso-García , M. Hempel , J. B. Pullen , M. D. Gregg , L. D. Baravalle , M. V. Alonso , B. I. Okere

We study the global scaling-laws of 51 compact field galaxies with redshifts z = 0.2-1.3 and apparent magnitudes I<23.74 in the flanking fields of the Hubble Deep Field. Roughly 60% of the 45 compact emission-line galaxies have sizes,…

Astrophysics · Physics 2007-05-23 R. Guzman , A. C. Phillips , J. Gallego , D. C. Koo , J. D. Lowenthal

Compact groups (CGs) of galaxies appear to be the densest galaxy systems containing a few luminous galaxies in close proximity to each other, which have a typical size of a few tens kilopacsec in observation. On the other hand, in the…

Astrophysics of Galaxies · Physics 2021-07-20 Yunliang Zheng , Shiyin Shen

The present paper discusses the results from an analysis of the images presented in Paper I (astro-ph/0207373) supplemented with new spectroscopic data obtained at Keck. All but one object in the 1-Jy sample show signs of a strong tidal…

Astrophysics · Physics 2008-11-26 S. Veilleux , D. -C. Kim , D. B. Sanders

We present the results of an intermediate-resolution (1.5\AA) spectroscopic study of 17 X-ray luminous narrow emission-line galaxies previously identified in the Cambridge-Cambridge {\it ROSAT} Serendipity Survey and the {\it Einstein}…

Astrophysics · Physics 2015-06-24 B. J. Boyle , R. G. McMahon , B. J. Wiles , M. Elvis

Far-infrared flux densities are newly extracted from the IRAS database for the RSA and CfA complete samples of Seyfert galaxies. These data are used to classify the Seyfert galaxies into those where the far-infrared continuum emission is…

Astrophysics · Physics 2016-08-30 H. Mouri , Y. Taniguchi

We have selected an all--sky sample of 893 galaxies from the IRAS FSC--2, defined by a total (ADDSCAN) 12um flux limit of 0.22~Jy. Completeness is verified to 0.30~Jy, below which we have quantified the incompleteness down to 0.22~Jy for…

Astrophysics · Physics 2009-10-22 B. Rush , M. A. Malkan , L. Spinoglio

We present new important results about the intermediate-type Seyfert galaxy Mrk 315, recently observed through optical imaging and integral-field spectroscopy. Broad-band images were used to study the morphology of the host galaxy,…

We present mosaicked long-slit spectral maps of 18 nearby Active Galactic Nuclei (AGNs), 2 LINERs, and 4 star-forming galaxies. With the resulting data cubes taken using the Kast dual spectrograph on the 3 m Shane telescope of the Lick…

Astrophysics of Galaxies · Physics 2018-12-21 Junjie Xia , Matthew A. Malkan , Nathaniel R. Ross , Agnes J. Ancheta

We present optical spectra for new infrared Seyfert galaxies obtained with the 2.16m telescope at Beijing Astronomical Observatory (BAO). After wavelength and flux calibration, they are classified by the degree of nuclear activity: nine…

Astrophysics · Physics 2007-05-23 Q. -S. Gu , J. -H. Huang , H. -J. Su , Z. -H. Shang

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

We measure stellar masses and structural parameters for 5,500 quiescent and 20,000 star-forming galaxies at 0.3<z\leq1.5 in the Newfirm Medium Band Survey COSMOS and UKIDSS UDS fields. We combine these measurements to infer velocity…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Rachel Bezanson , Pieter van Dokkum , Marijn Franx

Post-starbursts (PSBs) are candidate for rapidly transitioning from star-bursting to quiescent galaxies. We study the molecular gas evolution of PSBs at z ~ 0.03 - 0.2. We undertook new CO (2-1) observations of 22 Seyfert PSBs candidates…

Astrophysics of Galaxies · Physics 2017-06-21 Hassen M. Yesuf , K. Decker French , S. M. Faber , David C. Koo

Recent observations have shown that compact nuclear star clusters (NSCs) are present in up to 80% of galaxies. However, detailed studies of their dynamical and chemical properties are confined mainly to spiral galaxy hosts, where they are…

We present evidence that the outflowing UV absorbers in Seyfert 1 galaxies arise primarily in their inner narrow (emission) line regions (NLRs), based on similarities in their locations, kinematics, and physical conditions. 1) Hubble Space…

Astrophysics · Physics 2009-11-10 D. M. Crenshaw , S. B. Kraemer

Using data from the Sloan Digital Sky Survey (SDSS; data release 7), we have conducted a search for local analogs to the extremely compact, massive, quiescent galaxies that have been identified at z > 2. We show that incompleteness is a…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-21 Edward N Taylor , Marijn Franx , Karl Glazebrook , Jarle Brinchmann , Arjen van der Wel , Pieter G van Dokkum

Several recent studies have shown that about half of the massive galaxies at z~2 are in a quiescent phase. Moreover, these galaxies are commonly found to be ultra-compact with half-light radii of ~1 kpc. We have obtained a ~29 hr spectrum…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-22 Mariska Kriek , Pieter G. van Dokkum , Ivo Labbe , Marijn Franx , Garth D. Illingworth , Danilo Marchesini , Ryan F. Quadri

We present archival Hubble Space Telescope images of the nuclear regions of 43 of the 46 Seyfert galaxies found in the volume-limited, spectroscopically-complete CfA Redshift Survey sample. Using an improved method of image contrast…

Astrophysics · Physics 2009-11-07 Richard W. Pogge , Paul Martini

This paper aims to understand the continuum of Seyfert 2 galaxies. By fitting the single galaxies in the sample of Heckman et al. (1995) with composite models (shock+ photoionization from the active center), we show that five main…

Astrophysics · Physics 2009-10-31 M. Contini , S. M. Viegas

In order to investigate the properties of the prominent tidal debris feature extending to the northeast of the compact group of galaxies Seyfert's Sextet, we analyzed multi-band (U, B, V, VR, R, I, J, H and K') photometric imaging data and…

Astrophysics · Physics 2015-06-24 S. Nishiura , Y. Shioya , T. Murayama , Y. Sato , T. Nagao , Y. Taniguchi , D. B. Sanders