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相关论文: Surface photometry of new nearby dwarf galaxies

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CCD - photometry is presented for 20 dIrr galaxies situated in the nearby complexes CenA/M83, and CVnI as well as in the general field of the Local Volume. We present integrated magnitudes of the galaxies in B,V,I - bands and also surface…

宇宙学与河外天体物理 · 物理学 2015-05-13 L. Makarova , I. Karachentsev , L. Rizzi , R. B. Tully , G. Korotkova

We have carried out CCD photometry in the Cousins B and R bands of 21 dwarf galaxies in and around the M101 group. Eleven are members and suspected members of the group and ten are field galaxies in the projected vicinity of the group. We…

天体物理学 · 物理学 2009-10-31 T. Bremnes , B. Binggeli , P. Prugniel

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

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 V and I CCD photometry of suspected low-surface brightness dwarf galaxies detected in a survey covering ~2.4 deg^2 around the central region of the Dorado group of galaxies. The low-surface brightness galaxies were chosen based…

天体物理学 · 物理学 2009-10-31 E. R. Carrasco , C. M. de Oliveira , Leopoldo Infante , Michael Bolte

We have carried out CCD photometry in the Cousins B and R bands of 15 galaxies in the Canes Venatici I cloud. Total magnitudes, effective radii, effective surface brightnesses, as well as galaxy radii at various isophotal levels in both…

天体物理学 · 物理学 2009-10-31 T. Bremnes , B. Binggeli , P. Prugniel

Results of surface photometry of 50 galaxies in the Local Volume based on archived images obtained with the Hubble Space Telescope are presented. Integrated magnitudes in the V and I bands are introduced for the sample galaxies, along with…

星系天体物理 · 物理学 2023-11-13 K. A. Kryzhanovsky M. E. Sharina , I. D. Karachentsev , G. M. Karataeva

We have obtained deep near-infrared $J$- (1.25 $\mu$m), $H$- (1.65$ \mu$m) and $K_s$-band (2.15 $\mu$m) imaging for a sample of six dwarf galaxies ($M_B\ga-17$ mag) in the Local Volume (LV, $D\la10$ Mpc). The sample consists mainly of…

宇宙学与河外天体物理 · 物理学 2015-05-18 B. de Swardt , R. C. Kraan-Korteweg , H. Jerjen

[Abridged] We present deep optical and near-infrared UBVRIHKs imaging data for 24 blue compact galaxies (BCGs). The sample contains luminous dwarf and intermediate-mass BCGs which are predominantly metal-poor, although a few have near-solar…

宇宙学与河外天体物理 · 物理学 2015-06-11 Genoveva Micheva , Göran Östlin , Nils Bergvall , Erik Zackrisson , Josefa Masegosa , Isabel Marquez , Thomas Marquart , Florence Durret

We present a photometric catalog (based on V and I photometry) of galaxies in the central regions of the Fornax galaxy cluster. Our 11 CCD fields cover 0.17 degrees in total. The limiting surface brightness is around 24 mag arsec^-2,…

天体物理学 · 物理学 2009-10-30 M. Hilker , M. Kissler-Patig , T. Richtler , L. Infante , H. Quintana

We present BVI photometry of 190 galaxies in the central region of the Fornax Cluster observed with the Michigan Curtis Schmidt Telescope. The cluster members exhibit a strong surface brightness-magnitude relation in our data: both giant…

天体物理学 · 物理学 2009-11-07 A. M. Karick , M. J. Drinkwater , M. D. Gregg

We present deep H-band surface photometry and analysis of 40 Local Volume galaxies, a sample primarily composed of dwarf irregulars in the Cen A group, obtained using the IRIS2 detector at the 3.9m Anglo-Australian Telescope. We probe to a…

星系天体物理 · 物理学 2014-08-14 T. Young , H. Jerjen , Á. R. López-Sánchez , B. S. Koribalski

We have conducted a search of a 9 deg$^{2}$ region of the CFHTLS around the Milky Way analog M101 (D$\sim$7 Mpc), in order to look for previously unknown low surface brightness galaxies. This search has uncovered 38 new low surface…

星系天体物理 · 物理学 2017-12-06 P. Bennet , D. J. Sand , D. Crnojević , K. Spekkens , D. Zaritsky , A. Karunakaran

We present the photometric and spectroscopic results of a survey done in a wide-field area of nearby groups and poor clusters. The main goals are identifying and characterizing the properties of low-surface-brightness dwarf galaxies and…

天体物理学 · 物理学 2007-05-23 E. R. Carrasco , C. Mendes de Oliveira , L. Infante

We present surface photometry and metallicity measurements for 104 nearby dwarf galaxies imaged with the Advanced Camera for Surveys and Wide Field and Planetary Camera 2 aboard the Hubble Space Telescope. In addition, we carried out…

We examine the stellar content of 10 dwarf irregular galaxies of which broad-band CCD photometry was published in Hopp & Schulte-Ladbeck (1995). We also present Halpha images for several of these galaxies. The galaxies in the sample are…

天体物理学 · 物理学 2009-10-30 Regina E. Schulte-Ladbeck , Ulrich Hopp

At ~50 Mpc, the Hydra I cluster of galaxies is among the closest cluster in the z=0 Universe, and an ideal environment to study dwarf galaxy properties in a cluster environment. We exploit deep imaging data of the Hydra I cluster to…

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 present H-band surface photometry of 57 galaxies drawn from the Local Sphere of Influence (LSI) with distances of less than 10 Mpc from the Milky Way. The images with a typical surface brightness limit 4 mag fainter than 2MASS (24.5 mag…

天体物理学 · 物理学 2009-11-13 Emma Kirby , Helmut Jerjen , Stuart Ryder , Simon Driver

Dwarf satellite galaxies are a key probe of dark matter and of galaxy formation on small scales and of the dark matter halo masses of their central galaxies. They have very low surface brightness, which makes it difficult to identify and…

星系天体物理 · 物理学 2014-06-11 Allison Merritt , Pieter van Dokkum , Roberto Abraham
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