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We report the discovery of a rapidly rotating disk in a K-selected galaxy at z=1.34. Spatially resolved kinematics are determined from deep, moderate resolution Keck spectroscopy covering the redshifted [OII] 3727 line. A conservative…

Astrophysics · Physics 2009-11-07 P. G. van Dokkum , S. A. Stanford

We present results on integral-field optical spectroscopy of five luminous Blue Compact Dwarf galaxies. The data were obtained using the fiber system INTEGRAL attached at the William Herschel telescope. The galaxies Mrk 370, Mrk 35, Mrk…

We investigate the spatial extent and structure of the Pegasus dwarf irregular galaxy using deep, wide-field, multicolour CCD photometry from the Sloan Digital Sky Survey (SDSS) and new deep HI observations. We study an area of ~0.6 square…

Astrophysics of Galaxies · Physics 2015-05-14 Alexei Kniazev , Noah Brosch , G. Lyle Hoffman , Eva K. Grebel , Daniel B. Zucker , Simon A. Pustilnik

The infrared deep sample (IDS), in the north ecliptical polar region (NEPR), is the first complete, far--IR selected sample, on which numerous studies of galaxy evolution are based. Here we present and analyze the spectral classification of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 D. Bettoni , P. Mazzei , A. della Valle

We report on one of the brightest flux levels of the Seyfert 2 galaxy NGC 2992 ever observed in X-rays, on May 2019. The source has been monitored every few days from March 26, 2019 to December 14, 2019 by Swift-XRT, and simultaneous…

High Energy Astrophysical Phenomena · Physics 2020-06-24 A. Marinucci , S. Bianchi , V. Braito , B. De Marco , G. Matt , R. Middei , E. Nardini , J. N. Reeves

Strong mass loss off stars at the tip of the asymptotic giant branch (AGB) profoundly affects properties of these stars and their surroundings, including the subsequent planetary nebula (PN) stage. With this study we wanted to determine…

We present deep narrowband observations with high spatial resolution of extraplanar diffuse ionized gas in the halo of NGC891, obtained with the WFPC2 on-board the HST. Our H-alpha observations, centered on the northern part of NGC891,…

Astrophysics · Physics 2009-11-10 Joern Rossa , Ralf-Juergen Dettmar , Rene A. M. Walterbos , Colin A. Norman

The interstellar thick disks of galaxies serve as the interface between the thin star-forming disk, where feedback-driven outflows originate, and the distant halo, the repository for accreted gas. We present optical emission line…

We present results from a WIYN 3.5m telescope imaging study of the globular cluster (GC) systems of the edge-on spiral galaxies NGC891 and NGC4013. We used the 10' x 10' Minimosaic Imager to observe the galaxies in BVR filters to projected…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Katherine L. Rhode , Jessica L. Windschitl , Michael D. Young

We present new number density and surface brightness profiles for the globular cluster M92 (NGC 6341). These profiles are calculated from optical images collected with the CCD mosaic camera MegaCam at the Canada-France-Hawaii-Telescope and…

Solar and Stellar Astrophysics · Physics 2015-06-12 A. Di Cecco , A. Zocchi , A. L. Varri , M. Monelli , G. Bertin , G. Bono , P. B. Stetson , M. Nonino , R. Buonanno , I. Ferraro , G. Iannicola , A. Kunder , A. R. Walker

We present the results of N-band spectro-interferometric observations of the silicate carbon star IRAS08002-3803 with the MID-infrared Interferometric instrument (MIDI) at the Very Large Telescope Interferometer (VLTI) of the European…

We present wide field CCD photometry of a galactic globular cluster M92 obtained in the V and I bands with the CFH12K mosaic CCD at the Canada-France-Hawaii Telescope. A well-defined color-magnitude diagram is derived down to 5 magnitudes…

Astrophysics · Physics 2009-11-07 Kang Hwan Lee , Hyung Mok Lee , Gregory G. Fahlman , Myung Gyoon Lee

We present new HI observations of the nearby dwarf galaxy NGC 3741. This galaxy has an extremely extended HI disk, which allows us to trace the rotation curve out to unprecedented distances in terms of the optical disk: we reach 42 B-band…

Astrophysics · Physics 2008-11-26 G. Gentile , P. Salucci , U. Klein , G. L. Granato

A set of diffuse interstellar clouds in the inner Galaxy within a few hundred pc of the Galactic plane has been observed at an angular resolution of ~1 arcmin combining data from the NRAO Green Bank Telescope and the Very Large Array. At…

Astrophysics of Galaxies · Physics 2015-06-15 Yurii Pidopryhora , Felix J. Lockman , John M. Dickey , Michael P. Rupen

We present the results of a narrow-band survey of QSO fields at redshifts that place the [OIII](5007) emission line in the 1% 2.16micron filter. We have observed 3 square arcminutes and detected one emission line candidate object in the…

Astrophysics · Physics 2009-10-31 Harry I. Teplitz , Matthew A. Malkan , Ian S. McLean

High resolution spectra data of red clump stars towards the NGP have been obtained with the high resolution spectrograph Elodie at OHP for Tycho-2 selected stars. Combined with Hipparcos local analogues, we determine both the gravitational…

Astrophysics · Physics 2009-11-07 A. Siebert , O. Bienayme , C. Soubiran

The central parsec of the Milky Way is a very special region of our Galaxy; it contains the supermassive black hole associated with Sgr A* as well as a significant number of early-type stars and a complex structure of streamers of neutral…

Astrophysics of Galaxies · Physics 2013-05-01 J. E. Steiner , R. B. Menezes , Daniel Amorim

We present the PPAK Integral Field Spectroscopy (IFS) Nearby Galaxies Survey: PINGS, a 2-dimensional spectroscopic mosaicking of 17 nearby disk galaxies in the optical wavelength range. This project represents the first attempt to obtain…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 F. F. Rosales-Ortega , R. C. Kennicutt , S. F. Sanchez , A. I. Diaz , A. Pasquali , B. D. Johnson , C. N. Hao

SOFIA/HAWC+ 154 $\mu$m Far-Infrared polarimetry observations of the well-studied edge-on galaxy NGC 891 are analyzed and compared to simple disk models with ordered (planar) and turbulent magnetic fields. The overall low magnitude and the…

Astrophysics of Galaxies · Physics 2023-05-10 Jin-Ah Kim , Terry Jay Jones , C. Darren Dowell