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Related papers: New optical filamentary structures in Pegasus

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[Abridged] We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the young, compact planetary nebula (PN) SwSt 1 along the line of sight to its central star HD 167362. We detect circumstellar absorption lines from several…

Astrophysics · Physics 2009-11-10 N. C. Sterling , H. L. Dinerstein , C. W. Bowers , S. Redfield

We report the discovery of large ionized, [O II] emitting circumgalactic nebulae around the majority of thirty UV luminous quasars at $z=0.4-1.4$ observed with deep, wide-field integral field spectroscopy (IFS) with the Multi-Unit…

Recent millimeter/sub-millimeter facilities have revealed the physical properties of filamentary molecular clouds in relation to high-mass star formation. A uniform survey of the nearest, face-on star-forming galaxy, the Large Magellanic…

We present a photometric study of the Halpha emission in the Universidad Complutense de Madrid (UCM) Survey galaxies. This work complements our previously-published spectroscopic data. We study the location of the star-forming knots, their…

Astrophysics · Physics 2009-11-07 P. G. Perez-Gonzalez , J. Zamorano , J. Gallego , A. Aragon-Salamanca , A. Gil de Paz

We detect Ly$\alpha$ emission from a ~5 Mpc-long (comoving) portion of the cosmic web hosting an overdensity ($\delta \approx 25$) of 19 Ly$\alpha$ emitters (LAEs) at $z\approx 4$ within the MUSE Ultra Deep Field (MUDF), reaching an average…

We have mapped the [C I] emission at 492 GHz toward the supernova remnant Cas A. We detect [C I] emission from the periphery of the diffuse Photon Dominated Region (PDR) covering the disk of Cas A, as traced by the carbon recombination…

Astrophysics · Physics 2009-11-11 B. Mookerjea , N. G. Kantharia , D. A. Roshi , M. Masur , ;

We report the discovery of an ultra-faint Milky Way satellite galaxy in the constellation of Pegasus. The concentration of stars was detected by applying our overdensity detection algorithm to the SDSS-DR 10 and confirmed with deeper…

Astrophysics of Galaxies · Physics 2015-05-27 Dongwon Kim , Helmut Jerjen , Dougal Mackey , Gary S. Da Costa , Antonino P. Milone

We present 3.5m Apache Point Observatory second-epoch spectra of four low-metallicity emission-line dwarf galaxies discovered serendipitously in the Data Release 5 of the Sloan Digital Sky Survey (SDSS) to have extraordinary large broad…

Astrophysics · Physics 2018-05-30 Y. I. Izotov , T. X. Thuan

We have carried out a search for filamentary structures in the Taurus molecular cloud using $\rm^{13}CO$ line emission data from the FCRAO survey of $\rm \sim100 \, deg^2$. We have used the topological analysis tool, DisPerSe, and…

Solar and Stellar Astrophysics · Physics 2016-02-04 G. V. Panopoulou , K. Tassis , P. F. Goldsmith , M. H. Heyer

We observationally investigate star formation (SF) process occurring in AFGL 5157 (area ~13.5 pc X 13.5 pc) using a multi-wavelength approach. Embedded filaments are seen in the {\it Herschel} column density map, and one of them is…

Astrophysics of Galaxies · Physics 2019-11-06 L. K. Dewangan

Observations of H3+ in the Galactic diffuse interstellar medium (ISM) have led to various surprising results, including the conclusion that the cosmic-ray ionization rate (zeta_2) is about 1 order of magnitude larger than previously…

Astrophysics of Galaxies · Physics 2015-06-03 Nick Indriolo , Benjamin J. McCall

New optical images of the young SNR G292.0+1.8, obtained from the 0.9-m telescope at CTIO, show a more extensive network of filaments than had been known previously. Filaments emitting in [O III] are distributed throughout much of the 8…

Astrophysics · Physics 2009-11-11 P. Frank Winkler , Knox S. Long

Most of the baryons in the Universe are thought to be contained within filaments of galaxies, but as yet, no single study has published the observed properties of a large sample of known filaments to determine typical physical…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Amelia Fraser-McKelvie , Kevin A. Pimbblet , Jasmina S. Lazendic

We have recently detected CO lines in the well-known filaments around NGC 1275, the galaxy at the centre of the Perseus cluster of galaxies. These previous observations, with the HERA multi-beam array at the IRAM 30m telescope enabled us to…

Astrophysics · Physics 2009-11-13 P. Salomé , F. Combes , Y. Revaz , A. C. Edge , N. A. Hatch , A. C. Fabian , R. M. Johnstone

We report the results of 3D spectroscopic observations of Mrk 493 (NLS1 galaxy) with the integral-field spectrograph MPFS of the SAO RAS 6-m telescope. The difference in the slope of the optical continuum emission intensity across the…

Astrophysics · Physics 2009-11-13 L. C. Popovic , A. A. Smirnova , J. Kovacevic , A. V Moiseev , V. L. Afanasiev

We present Nobeyama 45m telescope C18O, 13CO, and 12CO(1-0) mapping observations towards an interstellar filament in the Taurus molecular cloud. We investigate the gas velocity structure along the filament and in its surrounding parent…

Astrophysics of Galaxies · Physics 2018-09-26 Doris Arzoumanian , Yoshito Shimajiri , Shu-ichiro Inutsuka , Tsuyoshi Inoue , Kengo Tachihara

We present a new data release from the Fiber Multi-Object Spectrograph (FMOS)-COSMOS survey, which contains the measurements of spectroscopic redshift and flux of rest-frame optical emission lines (H$\alpha$, [NII], [SII], H$\beta$, [OIII])…

The far-ultraviolet (FUV) diffuse emission is predominantly due to scattering of starlight from interstellar dust grains which shows a large regional variation depending on the relative orientations of dust and stars. The observations of…

Astrophysics of Galaxies · Physics 2013-07-05 Ananta C. Pradhan

Galaxy filaments are a peculiar environment, and their impact on the galaxy properties is still controversial. Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP), we provide the first characterisation of the…