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相关论文: Difference in dwarf galaxy surface brightness prof…

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In order to investigate the nature of dwarf Low Surface Brightness (LSB) galaxies we have undertaken a deep B and I band CCD survey of a 14 sq degree strip in the Virgo Cluster and applied a Fourier convolution technique to explore its…

天体物理学 · 物理学 2009-11-10 S. Sabatini , J. Davies , W. van Driel , M. Baes , S. Roberts , R. Smith , S. Linder , K. O'Neil

The nature of the dwarf galaxy population as a function of location in the cluster and within different environments is investigated. We have previously described the results of a search for low surface brightness objects in data drawn from…

天体物理学 · 物理学 2009-11-13 S. Sabatini , J. I. Davies , S. Roberts , R. Scaramella

Radial surface brightness profiles of spiral galaxies are classified into three types: (I) single exponential, or the light falls off with one exponential to a break before falling off (II) more steeply, or (III) less steeply. Profile…

宇宙学与河外天体物理 · 物理学 2015-06-17 Kimberly A. Herrmann , Deidre A. Hunter , Bruce G. Elmegreen

In this second paper of a series, we explore the B-V, U-B, and FUV-NUV radial color trends from a multi-wavelength sample of 141 dwarf disk galaxies. Like spirals, dwarf galaxies have three types of radial surface brightness profiles: (I)…

星系天体物理 · 物理学 2016-06-06 Kimberly A. Herrmann , Deidre A. Hunter , Bruce G. Elmegreen

(shortened) We analyze deep Near Infrared (NIR) broad band images for a sample of Blue Compact Dwarf Galaxies (BCDs), allowing for the quantitative study of their extended stellar low-surface brightness (LSB) host galaxies. NIR surface…

天体物理学 · 物理学 2009-11-10 K. G. Noeske , P. Papaderos , L. M. Cairos , K. J. Fricke

We investigate the structural properties of the underlying hosts of 34 blue compact dwarf (BCD) galaxies with deep near-infrared (NIR) photometry. The BCD sample is selected from the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey…

星系天体物理 · 物理学 2016-01-06 Jianhui Lian , Xu Kong , Ning Jiang , Wei Yan , Yulong Gao

The surface brightness fluctuation (SBF) method is a robust and efficient way of measuring distances to galaxies containing evolved stellar populations. Although many recent applications of the method have used space-based imaging, SBF…

We have carried out surface photometry and an isophotal analysis for a sample of 25 early-type dwarf (dE and dS0) galaxies in the Virgo cluster based on CCD images taken at the VLT with FORS1 and FORS2. For each galaxy we present $B$ and…

天体物理学 · 物理学 2009-11-07 Fabio D. Barazza , Bruno Binggeli , Helmut Jerjen

The results of an Halpha photometric survey of 30 dwarf galaxies of various morphologies in the Centaurus A and Sculptor groups are presented. Of these 30, emission was detected in 13: eight are of late-type, two are early-type and three…

天体物理学 · 物理学 2009-11-13 A. Bouchard , G. S. Da Costa , H. Jerjen

Surface photometry data on 90 dwarf irregular galaxies (dIrrs) in a wide vicinity of the Virgo cluster and 30 isolated dIrrs are presented. Images from the Sloan Digital Sky Survey (SDSS) are used. The following mean photometric…

星系天体物理 · 物理学 2023-11-13 M. E. Sharina

The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this…

天体物理学 · 物理学 2009-11-07 S. Sabatini , J. Davies , R. Scaramella , R. Smith , M. Baes , S. M. Linder , S. Roberts , V. Testa

This paper is part of a series of publications which present a systematic study of Blue Compact Dwarf (BCD) Galaxies in the Near Infrared (NIR). Compared to the visible light, NIR data allow a better separation of the starburst emission…

天体物理学 · 物理学 2009-11-10 K. G. Noeske , P. Papaderos , L. M. Cairos , K. J. Fricke

We present radial surface brightness profiles for all five globular clusters in the Fornax dwarf spheroidal galaxy, and for the four present members of the Sagittarius dwarf spheroidal galaxy. These profiles are derived from archival Hubble…

天体物理学 · 物理学 2009-11-07 A. D. Mackey , G. F. Gilmore

We used V and I CCD photometry to search for low-surface brightness dwarf galaxies (LSBD) in the central (<0.5 h^-1 Mpc) region of the groups NGC 6868, NGC 5846, HCG 42 and the poor cluster IC 4765. Using the parameters given by the…

天体物理学 · 物理学 2008-11-26 Eleazar R. Carrasco , Claudia M. de Oliveira , Leopoldo Infante

We present $BVI$ surface photometry of 31 dwarf galaxy candidates discovered in a deep image stack from the KMTNet Supernova Program of $\sim$ 30 square degrees centered on the nearby NGC 2784 galaxy group. Our final images have a 3$\sigma$…

星系天体物理 · 物理学 2017-10-11 Hong Soo Park , Dae-Sik Moon , Dennis Zaritsky , Mina Pak , Jae-Joon Lee , Sang Chul Kim , Dong-Jin Kim , Sang-Mok Cha

We describe a new, deep photographic survey of the Virgo Cluster which uses multiple exposures on Tech Pan film with the United Kingdom Schmidt Telescope to probe the dwarf population to fainter surface brightness limits than previous…

天体物理学 · 物理学 2007-05-23 J. B. Jones , S. Phillipps , J. M. Schwartzenberg , Q. A. Parker

We present and analyse the photometric properties of a nearly complete sample of blue compact dwarf (BCD) and irregular galaxies in the Virgo cluster from multi-band SDSS images. Our study intends to shed light on the ongoing debate of…

星系天体物理 · 物理学 2015-06-17 Hagen T. Meyer , Thorsten Lisker , Joachim Janz , Polychronis Papaderos

The fraction of star-forming to quiescent dwarf galaxies varies from almost infinity in the field to zero in the centers of rich galaxy clusters. What is causing this pronounced morphology-density relation? What do quiescent dwarf galaxies…

Galaxy evolution by interaction driven transformation is probably highly efficient in groups of galaxies. Dwarf galaxies with their shallow potential are expected to reflect the interaction most prominently in their observable structure.…

星系天体物理 · 物理学 2015-06-22 U. Hopp , J. Vennik

The surface brightness distribution of $\sim$30-40$\%$ of the early-type dwarf galaxies with $-18 \leq M_{B} \leq -15$ in the Virgo and the Coma clusters is fitted by models that include two structural components (S\`ersic + exponential) as…

星系天体物理 · 物理学 2016-03-16 J. Alfonso L. Aguerri
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