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We present the first spatially resolved characterisation of the cool intragroup medium (IGrM) in a spectroscopically confirmed galaxy group at z=1.167. Using 30 independent sightlines towards the gravitationally lensed galaxy SGAS J0033+02,…

The identification of two new Planetary Nebulae in the Sagittarius Dwarf Spheroidal Galaxy (Sgr) is presented. This brings the total number to four. The first, StWr 2-21, belongs to the main body of Sgr. The second, the halo PN BoBn 1, has…

Astrophysics · Physics 2009-11-11 Albert Zijlstra , K. Gesicki , J. R. Walsh , D. Pequignot , P. A. M. van Hoof , D. Minniti

Single metal polluted white dwarfs with no dusty disks are believed to be actively accreting metals from a circumstellar disk of gas caused by the destruction of asteroids perturbed by planetary systems. We report, for the first time, the…

Solar and Stellar Astrophysics · Physics 2015-06-05 J. H. Debes , M. Kilic , F. Faedi , E. L. Shkolnik , M. Lopez-Morales , A. J. Weinberger , C. Slesnick , R. G. West

We present the results of a uniform and systematic search for blue-shifted Fe K absorption lines in the X-ray spectra of five bright Broad-Line Radio Galaxies (BLRGs) observed with Suzaku. We detect, for the first time at X-rays in…

High Energy Astrophysical Phenomena · Physics 2015-05-19 F. Tombesi , R. M. Sambruna , J. N. Reeves , V. Braito , L. Ballo , J. Gofford , M. Cappi , R. F. Mushotzky

Previous searches for atomic gas in our Galaxy's dwarf spheroidal companions have not been complete enough to settle the question of whether or not these galaxies have HI, especially in their outer parts. We present new observations of the…

Astrophysics · Physics 2009-10-31 L. M. Young

Ionized gas and stellar kinematics have been measured along the major axes of seventeen nearby spiral galaxies of intermediate to late morphological type. We discuss the properties of each sample galaxy distinguishing between those…

Astrophysics · Physics 2009-11-10 A. Pizzella , E. M. Corsini , J. C. Vega-Beltran , F. Bertola

We explore the growth of the stellar disks in 14 nearby spiral galaxies as part of the Deciphering the Interplay between the Interstellar medium, Stars, and the Circumgalactic medium (DIISC) survey. We study the radial distribution of…

Spectroscopic redshifts have been measured for 9 K-band luminous galaxies at 1.7 < z < 2.3, selected with Ks < 20 in the "K20 survey" region of the Great Observatories Origins Deep Survey area. Star formation rates (SFRs) of ~100-500…

We compare infrared Tully-Fisher (TF) distances and peculiar velocities derived for spiral galaxies from the two largest datasets: the 2MASS selected Flat Galaxy Catalog, 2MFGC [19, 20] and the Arecibo General Catalog with I-band…

We report the results of a study of the rest-frame UV spectrum of the Cosmic Eye, a luminous Lyman break galaxy at z=3.07331 gravitationally lensed by a factor of 25. The spectrum, recorded with the ESI spectrograph on the Keck II…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Anna M. Quider , Alice E. Shapley , Max Pettini , Charles C. Steidel , Daniel P. Stark

We use infrared Color Magnitude Diagrams from the 2-Micron All-Sky Survey (2MASS) to search for stars belonging to the tidal stream of the Sagittarius dwarf spheroidal galaxy (Sgr dSph) around selected Galactic globular clusters.…

Astrophysics · Physics 2009-11-07 M. Bellazzini , R. Ibata , F. R. Ferraro , V. Testa

We analyse the ionized gas kinematics in the star formation regions of the supergiant shell (SGS) of the IC 2574 galaxy using observations with the Fabry-Perot interferometer at the 6-m telescope of SAO RAS; the data of the THINGS survey…

Astrophysics of Galaxies · Physics 2015-08-24 O. V. Egorov , T. A. Lozinskaya , A. V. Moiseev , G. V. Smirnov-Pinchukov

The kinematics and chemical composition of stellar populations of different ages provide crucial information about the evolution of a galaxy. We aim to provide such information for IC 1613, an isolated, gas-rich, star-forming dwarf galaxy…

We present a comprehensive study of the Na I $\lambda$5890, 5895 (Na I D) resonant lines in the Sloan Digital Sky Survey (SDSS, DR7) spectroscopic sample to look for neutral gas outflows in the local galaxies. Individual galaxy spectra are…

Astrophysics of Galaxies · Physics 2020-09-01 A. Concas , P. Popesso , M. Brusa , V. Mainieri , D. Thomas

We report an intrinsic absorber with decreasing outflow velocity in the Seyfert 1 galaxy NGC 3783. This is the first detection of a change in radial velocity in an outflow associated with a Seyfert galaxy. These results are based on…

I report detections of four new HI 21-cm absorbers associated with sources at intermediate redshifts, 0.7 < z < 1.0. The sources are part of a sample of 11 radio-loud galaxies, all at 0.7 < z < 1.0, that were searched for associated HI…

Astrophysics of Galaxies · Physics 2018-11-28 J. N. H. S. Aditya

Comparison of ISM absorption in the UV spectrum of LS 4825, a B1 Ib-II star d=21+/-5 kpc from the Sun toward l = 1.67 deg and b = -6.63 deg, with ISM absorption toward an aligned foreground star at d < 7.0+/-1.7 kpc, allows us to isolate…

This paper presents L-band ISAAC and NAOS/CONICA (VLT) spectroscopic observations of the IRS~3-IRS~13 Galactic Center region. The ISAAC data allowed us to build the first spectroscopic data cube of the region in the L-band domain corrected…

Astrophysics · Physics 2009-11-11 J. Moultaka , A. Eckart , R. Schoedel , T. Viehmann , F. Najarro

We present high-resolution, high signal to noise absorption-line observations of CN, Ca II, Ca I, CH^+, and CH along twenty lines of sight toward members of the Pleiades. The acquired data enable the most detailed study to date of the…

Astrophysics · Physics 2010-11-11 A. M. Ritchey , M. Martinez , K. Pan , S. R. Federman , D. L. Lambert

We examine the relationship between galaxies and the intergalactic medium at z < 1 using a group of three closely spaced background QSOs with z_em ~1 observed with the Hubble Space Telescope. Using a new grouping algorithm, we identify…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Neil H. M. Crighton , Simon L. Morris , Jill Bechtold , Robert A. Crain , Buell T. Jannuzi , Allen Shone , Tom Theuns