中文
相关论文

相关论文: Mining the Local Volume

200 篇论文

Nuclear star clusters (NSCs) are a common phenomenon in galaxy centres and are found in a vast majority of galaxies of intermediate stellar mass $10^{9}$ M$_{\odot}$. Recent investigations suggest that they are rarely found in the least and…

星系天体物理 · 物理学 2021-08-25 Nils Hoyer , Nadine Neumayer , Iskren Y. Georgiev , Anil C. Seth , Jenny E. Greene

We present results from a GALEX ultraviolet (UV) survey of a complete sample of 390 galaxies within ~11 Mpc of the Milky Way. The UV data are a key component of the composite Local Volume Legacy (LVL), an ultraviolet-to-infrared imaging…

A beginning end-point for galaxy motions within the 10-Mpc Local Volume is constructed by requiring a smooth distribution of (luminous) mass at the time of recombination, which is shown to be equivalent to a smooth Hubble flow at early…

天体物理学 · 物理学 2008-11-26 Alan B. Whiting

New HI observations are presented for a complete sample of 109 low luminosity star-forming galaxies taken from the KPNO International Spectroscopic Survey (KISS), the first CCD-based wide-field objective-prism survey for emission-line…

天体物理学 · 物理学 2009-11-07 Janice C. Lee , John J. Salzer , Christopher D. Impey , Trinh X. Thuan , Caryl Gronwall

Measuring the proper motions and geometric distances of galaxies within the Local Group is very important for our understanding of the history, present state and future of the Local Group. Currently, proper motion measurements using optical…

天体物理学 · 物理学 2007-05-23 A. Brunthaler , M. J. Reid , H. Falcke , C. Henkel , K. M. Menten

The luminosity-size and stellar mass-size distributions of galaxies out to z~3 is presented. We use very deep near-infrared images of the Hubble Deep Field South in the J_s, H, and K_s bands, taken as part FIRES at the VLT, to follow the…

A survey of 329 nearby galaxies (redshift z < 0.045) has been conducted to study the distribution of mass and light within spiral galaxies over a range of environments. The 18 observed clusters and groups span a range of richness, density,…

天体物理学 · 物理学 2009-11-10 Nicole P. Vogt , Martha P. Haynes , Terry Herter , Riccardo Giovanelli

Rapid advance has been made recently in accurate distance measurements for nearby ($D < 11$ Mpc) galaxies based on the magnitude of the tip of red giant branch stars resolved with the Hubble Space Telescope. We use observational properties…

星系天体物理 · 物理学 2021-09-02 Igor D. Karachentsev , Olga G. Kashibadze

The main goal of this work is to form a large, deep and representative sample of dwarf galaxies residing in voids of the nearby Universe. The formed sample is the basement for the comprehensive mass study of the galaxy content, their…

星系天体物理 · 物理学 2018-12-17 S. A. Pustilnik , A. L. Tepliakova , D. I. Makarov

We present an all-sky catalogue of 395 nearby galaxy groups revealed in the Local Supercluster and its surroundings. The groups and their associations are identified among 10914 galaxies at |b|>15deg with radial velocities VLG<3500 km/s.…

宇宙学与河外天体物理 · 物理学 2015-05-20 Dmitry Makarov , Igor Karachentsev

The Local Void is one of the nearest large voids, located at a distance of 23 Mpc. It lies largely behind the Galactic Bulge and is therefore extremely difficult to observe. We use HI 21 cm emission observations from the SARAO MeerKAT…

We present new measurements of the abundance of galaxies with a given circular velocity in the Local Volume: a region centered on the Milky Way Galaxy and extending to distance 10Mpc. The sample of 750 mostly dwarf galaxies provides a…

宇宙学与河外天体物理 · 物理学 2016-02-05 Anatoly Klypin , Igor Karachentsev , Dmitry Makarov , Olga Nasonova

The abundance of neutral hydrogen (HI) in satellite galaxies in the Local Group is important for studying the formation history of our Local Group. In this work, we generated mock HI satellite galaxies in the Local Group using the high mass…

星系天体物理 · 物理学 2018-02-07 Jing Li , Yougang Wang , Minzhi Kong , Jie Wang , Xuelei Chen , Rui Guo

To study the global morphology of the galaxy distribution in our local neighbourhood we calculate the Minkowski functionals for a sequence of volume limited samples within a sphere of 8 Mpc centred on our galaxy. The well known strong…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. Kerscher , A. Tikhonov

Based on accurate measurements of distances to nearby galaxies made with Hubble Space Telescope, we determined the radii of the zero-velocity surface: R_0 = 0.96+-0.03 Mpc for the Local Group and R_0 = 0.89+-0.05 Mpc for the group of…

天体物理学 · 物理学 2007-05-23 I. D. Karachentsev , O. G. Kashibadze

A sample of 11 thousand galaxies with radial velocities V_ LG < 3500 km/s is used to study the features of the local distribution of luminous (stellar) and dark matter within a sphere of radius of around 50 Mpc around us. The average…

宇宙学与河外天体物理 · 物理学 2015-06-04 I. D. Karachentsev

Five galaxy groups with properties similar to those of the Local Group have been surveyed for HI clouds with the Arecibo Telescope. In total 300 pointings have been observed on grids of approximately 2.5 x 1.5 Mpc centred on the groups. The…

天体物理学 · 物理学 2009-11-06 Martin Zwaan

Near-infrared properties of 451 galaxies with distances D \leq 10 Mpc are considered basing on the all-sky two micron survey (2MASS). A luminosity function of the galaxies in the K-band is derived within [-25,-11] mag. The local (D < 8 Mpc)…

天体物理学 · 物理学 2009-11-10 I. D. Karachentsev , A. M. Kut'kin

We present the results of our HI survey of six loose groups of galaxies analogous to the Local Group. The survey was conducted using the Parkes telescope and the Australia Telescope Compact Array to produce a census of all the gas-rich…

天体物理学 · 物理学 2015-06-24 D. J. Pisano , D. Barnes , B. Gibson , L. Staveley-Smith , K. Freeman , V. Kilborn

We have conducted an HI 21 cm emission-line survey of six loose groups of galaxies chosen to be analogs to the Local Group. The survey was conducted using the Parkes Multibeam instrument and the Australia Telescope Compact Array (ATCA) over…

宇宙学与河外天体物理 · 物理学 2015-05-30 D. J. Pisano , D. G. Barnes , L. Staveley-Smith , B. K. Gibson , V. A. Kilborn , K. C. Freeman