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Related papers: The very local Hubble flow

200 papers

We here present the luminosity function (LF) of globular clusters (GCs) in five nearby spiral galaxies using the samples of GC candidates selected in Hubble Space Telescope mosaic images in F435W, F555W and F814W filters. Our search, which…

Astrophysics of Galaxies · Physics 2021-10-20 Luis Lomelí-Núñez , Y. D. Mayya , L. H. Rodríguez-Merino , P. A. Ovando , D. Rosa-González

A statistical method is presented for determining the velocity field in the immediate vicinity of groups of galaxies using only positional and redshift information with the goal of studying the perturbation of the Hubble flow around groups…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 F. D. A. Hartwick

On the basis of a new photometric analysis of the Local Group dwarf irregular galaxy NCG 6822 based on observations obtained with the Advanced Camera for Surveys onboard the Hubble Space Telescope, we have obtained a new estimate of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 F. Fusco , R. Buonanno , G. Bono , S. Cassisi , M. Monelli , A. Pietrinferni

The Local Void is the nearest void from us and is thought to be playing an important role in the kinematics of the local universe, especially as one of the suspected source of the motion of the Local Group. The imbalance between the mass in…

Astrophysics · Physics 2007-05-23 I. Iwata , K. Ohta , K. Nakanishi , P. Chamaraux , A. T. Roman

We present a simultaneous analysis of 18 galaxy lenses with time delay measurements. For each lens we derive mass maps using pixelated simultaneous modeling with shared Hubble constant. We estimate the Hubble constant to be 66_{-4}^{+6}…

Cosmology and Nongalactic Astrophysics · Physics 2010-10-05 Danuta Paraficz , Jens Hjorth

A distinct sub-class of anomalous velocity HI emission features has emerged from recent high quality surveys of the Local Group environment, namely the compact high velocity clouds (CHVCs). A program of high-resolution imaging with the…

Astrophysics · Physics 2007-05-23 Robert Braun , W. Butler Burton

We present the results of our stellar photometry and spectroscopy for the new Local Group galaxy VV 124 (UGC 4879) obtained with the 6-m BTA telescope. The presence of a few bright supergiants in the galaxy indicates that the current star…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 N. A. Tikhonov , S. N. Fabrika , O. N. Sholukhova , A. I. Kopylov

We used the Revised Flat Galaxy Catalog (RFGC) to select 817 ultra-flat (UF) edge-on disk galaxies with blue and red apparent axial ratios of $(a/b)_B > 10.0$ and $(a/b)_R > 8.5$. The sample covering the whole sky, except the Milky Way…

Astrophysics of Galaxies · Physics 2016-06-01 I. D. Karachentsev , V. E. Karachentseva , Yu. N. Kudrya

For precision cosmological studies it is important to know the local properties of the reference point from which we observe the Universe. Particularly for the determination of the Hubble constant with low-redshift distance indicators, the…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-25 Hans Boehringer , Gayoung Chon , Chris A. Collins

We have carried out an H-alpha flux measurement for 52 nearby galaxies as part of a general H-alpha imaging survey for the Local Volume sample of galaxies within 10 Mpc. Most of the objects are probable members of the groups around Maffei…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Igor D. Karachentsev , Serafim S. Kaisin

We analyze the monopole in the peculiar velocities of 44 Type Ia supernovae (SNe Ia) to test for a local void. The sample extends from 20 to 300 Mpc/h, with distances, deduced from light-curve shapes, accurate to ~6%. Assuming Omega_m=1 and…

Astrophysics · Physics 2008-11-26 Idit Zehavi , Adam G. Riess , Robert P. Kirshner , Avishai Dekel

We investigate the distribution and velocity field of galaxies situated in a band of 100 by 20 degrees centered on M87 and oriented along the Local supercluster plane. Our sample amounts 2158 galaxies with radial velocities less than 2000…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-28 Olga G. Kashibadze , Igor D. Karachentsev , Valentina E. Karachrntseva

Current explanation of the overabundance of dark matter subhalos in the Local Group (LG) indicates that there maybe a limit on mass of a halo, which can host a galaxy. This idea can be tested using voids in the distribution of galaxies: at…

Astrophysics · Physics 2015-05-13 Anton Tikhonov , Anatoly Klypin

We present the statistical redshift distribution of a large sample of low surface brightness (LSB) galaxies identified in the first 200 deg$^2$ of the Hyper Suprime-Cam Strategic Survey Program. Through cross-correlation with the NASA-SDSS…

The relationship between the integrated H$\beta$ line luminosity and the velocity dispersion of the ionized gas of HII galaxies and giant HII regions represents an exciting standard candle that presently can be used up to redshifts…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-28 David Fernández-Arenas , Ricardo Chávez

Here we present observations with the Advanced Camera for Surveys on the Hubble Space Telescope of the nearby, transition-type dwarf galaxy KK258 = ESO468-020. We measure a distance of 2.23$\pm$0.05 Mpc using the Tip of Red Giant Branch…

Astrophysics of Galaxies · Physics 2015-06-22 I. D. Karachentsev , L. N. Makarova , R. B. Tully , Po-Feng Wu , A. Y. Kniazev

Accurate distances are fundamental to interpreting many measured properties of galaxies. Surprisingly, many of the best-studied spiral galaxies in the Local Volume have distance uncertainties that are much larger than can be achieved with…

Astrophysics of Galaxies · Physics 2017-07-27 Kristen B. W. McQuinn , Evan D. Skillman , Andrew E. Dolphin , Danielle Berg , Robert Kennicutt

We present new Hubble Space Telescope STIS, high-resolution optical imaging of a sample of 13 submillimeter (submm) luminous galaxies, for which the optical emission has been pinpointed either through radio-1.4 GHz or millimeter…

Astrophysics · Physics 2009-07-10 S. C. Chapman , R. Windhorst , S. Odewahn , H. Yan , C. Conselice

The HST's WFPC2 has several advantages over ground--based observations for the study of globular cluster luminosity functions (GCLFs) and distance determination. Here we present WFPC2 data on the globular clusters associated with NGC 5846.…

Astrophysics · Physics 2009-10-28 Duncan A. Forbes

We present new results from the SCUBA Local Universe Galaxy Survey (SLUGS), the first large systematic submillimetre survey of the local Universe. Since our initial survey of a sample of 104 IRAS-selected galaxies we have now completed a…

Astrophysics · Physics 2009-11-13 Catherine Vlahakis , Loretta Dunne , Stephen Eales