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The results of $H_\alpha$ and [NII]$\lambda 6583$ observations of the spiral galaxy NGC 1084 at the SAO 6m telescope with a Fabry-Perot interferometer are presented. The complex structure of the emission line profile has revealed the…

Astrophysics · Physics 2007-05-23 A. V. Moiseev

We report the discovery of a 20-kpc-sized H{\alpha} emission in SDSS J083803.68+540642.0, a ringed dwarf galaxy (M$_V$ = -17.89 mag) hosting an accreting intermediate-mass black hole at z=0.02957. Analysis of the HST images indicates that…

Astrophysics of Galaxies · Physics 2017-03-15 Wen-Juan Liu , Lei Qian , Xiao-Bo Dong , Ning Jiang , Paulina Lira , Zheng Cai , Feige Wang , Jinyi Yang , Ting Xiao , Minjin Kim

Although relatively common in the local Universe, only one grand-design spiral galaxy has been spectroscopically confirmed to lie at z>2 (HDFX 28; z=2.011), and may prove to be a major merger that simply resembles a spiral in projection.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 David R. Law , Alice E. Shapley , Charles C. Steidel , Naveen A. Reddy , Charlotte R. Christensen , Dawn K. Erb

Broad and narrow band images and long slit spectroscopy of IC1182 are presented. The broad band images reveal a distorted morphology with a large, heavily obscured disk-like structure and several knots in the central region. Galactic…

Astrophysics · Physics 2016-08-16 M. Moles , D. Bettoni , G. Fasano , P. Kjærgaard , J. Varela

Investigation of gaseous and stellar kinematics and of broad-band VRI and narrow-band H-alpha and [NII]6583 images is performed for the central part (R < 4 kpc) of the regular spiral galaxy NGC 2841. We have found emission-line splitting at…

Astrophysics · Physics 2009-10-31 V. L. Afanasiev , O. K. Sil'chenko

Nearby merging pairs are unique laboratories in which one can study the gravitational effects on the individual interacting components. In this manuscript, we report the characterization of selected HII regions along the peculiar galaxy NGC…

High-resolution interferometric observations of the circumstellar environments of AGB stars show a variety of morphologies. Guided by the unusual carbon monoxide line profile of the AGB star EP Aquarii, we have observed its circumstellar…

Solar and Stellar Astrophysics · Physics 2018-08-15 Ward Homan , Anita Richards , Leen Decin , Alex de Koter , Pierre Kervella

The results from deep long-slit spectroscopy of nine edge-on spiral galaxies with known extraplanar line emission are reported. Emission from Halpha, [N II] lambda 6548, 6583, and [S II] lambda 6716, 6731 is detected out to heights of a few…

Astrophysics · Physics 2009-11-07 Scott T. Miller , Sylvain Veilleux

We present a multiwavelength spectral study of the quasar HE0359-3959, which has been identified as an extreme radiating source at intermediate redshift (z=1.5209). Along the spectral range, the different ionic species give information…

Astrophysics of Galaxies · Physics 2018-01-16 M. L. Martínez-Aldama , A. Del Olmo , P. Marziani , C. A. Negrete , D. Dultzin , M. A. Martínez-Carballo

Westerbork Radio Synthesis Telescope observation of the galaxy VV29=Arp188=UGC10214 shows that there are at least three distinct dynamical components whose kinematics can be traced in 21cm line emission. The system appears to be the result…

Astrophysics · Physics 2009-11-07 F. H. Briggs , O. Moller , J. L. Higdon , N. Trentham , E. Ramirez-Ruiz

Mapping Mg II resonance emission scattered by galactic winds offers a means to determine the spatial extent and density of the warm outflow. Using Keck/LRIS spectroscopy, we have resolved scattered Mg II emission to the east of 32016857, a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Crystal L. Martin , Alice E. Shapley , Alison L. Coil , Katherine A. Kornei , Norman Murray , Anna Pancoast

The quasar SDSS 0956+5128 exhibits three distinct velocity components with large offsets in emission: the systemic velocity of [O II], [O III] and [Ne III] narrow lines have redshift $z=0.7142$; broad Mg II line is shifted by $-1200$ km…

High Energy Astrophysical Phenomena · Physics 2023-03-06 V. Rusakov , C. L. Steinhardt , M. Schramm , A. L. Faisst , D. Masters , B. Mobasher , P. Pattarakijwanich

Gaseous, disk-halo interfaces are shaped by processes that are critical to galaxy evolution, including gas accretion and outflows. Extraplanar diffuse ionized gas (eDIG) layers are characterized by scale heights that largely exceed those…

Astrophysics of Galaxies · Physics 2025-07-01 Hanjue Zhu , Erin Boettcher , Hsiao-Wen Chen

Using a spectral decomposition technique (Soto & Martin 2012, hereafter Paper I), we investigate the physical origin of the high-velocity emission line gas in a sample of 39 gas-rich, ultraluminous infrared galaxy (ULIRG) mergers. Regions…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Kurt T. Soto , C. L. Martin , M. K. M. Prescott , L. Armus

The extraplanar diffuse ionized gas (eDIG) in 17 nearby, edge-on disk galaxies is studied using deep Taurus Tunable Filter Halpha and [N II] lambda 6583 images and conventional interference filter Halpha + [N II] lambda 6548, 6583 images…

Astrophysics · Physics 2009-11-07 Scott T. Miller , Sylvain Veilleux

Here we report the detection, in Halpha emission, of a radial corrugation in the velocity field of the spiral galaxy NGC 5427. The central velocity of the Halpha line displays coherent, wavy-like variations in the vicinity of the spiral…

We present a new sample of bright galaxy pairs extracted applying an objective selection code to UZC catalog.The sample is volume limited to M$_{zw}$ = -18.9 +5 log ${\it h}$ and contains 89 galaxy pairs.We analyze the kinematical,…

Astrophysics · Physics 2009-11-11 P. Focardi , V. Zitelli , S. Marinoni , B. Kelm

Serendipitously we have discovered a rare, bright submillimeter galaxy (SMG) with a flux density of 30 +/- 2 mJy at lambda=1.2mm, using MAMBO2 at the IRAM 30-meter millimeter telescope. Although no optical counterpart is known for…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 J. -F. Lestrade , F. Combes , P. Salome , A. Omont , F. Bertoldi , P. Andre , N. Schneider

We report the detection of a highly collimated linear emission-line structure in the spiral galaxy NGC\,232 through the use of integral field spectroscopy data from the All-weather MUse Supernova Integral field Nearby Galaxies (AMUSING)…

Optical red spectra of a set of 18 bright barred spiral galaxies are presented. The study is aimed at determining the local kinematics, and the physical conditions of ionized gas in the compact nucleus (inside a diameter of 5") and in the…

Astrophysics · Physics 2007-05-23 J. A. Garcia-Barreto , H. Aceves , O. Kuhn , G. Canalizo , R. Carrillo , J. Franco
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