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相关论文: HII regions in the CALIFA survey: I. Catalog prese…

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We present in here the exploration of the physical properties of the sample of HII regions and aggregations of the last HII regions catalog of the CALIFA survey. This sample comprises the optical spectroscopic properties of more than…

We present a catalog of $\sim$52,000 extragalactic HII regions and their spectroscopic properties obtained using Integral Field Spectroscopy (IFS) from MUSE observations. The sample analyzed in this study contains 678 galaxies within the…

Context. The knowledge of abundance distributions is central to understanding the formation and evolution of galaxies. Most of the relations employed for the derivation of gas abundances have so far been derived from observations of outer…

星系天体物理 · 物理学 2018-01-24 M. Rodríguez-Baras , A. I. Díaz , F. F. Rosales-Ortega , S. F. Sánchez

Using data from the all-sky Wide-Field Infrared Survey Explorer (WISE) satellite, we made a catalog of over 8000 Galactic HII regions and HII region candidates by searching for their characteristic mid-infrared (MIR) morphology. WISE has…

H ii regions in galaxies are the sites of star formation and thus particular places to understand the build-up of stellar mass in the universe. The line ratios of this ionized gas are frequently used to characterize the ionization…

We present the results of a study of young unresolved stellar groupings (clusters, OB associations, and their complexes) associated with HII regions, based on the coupling of spectroscopic, photometric and H{\alpha} spectrophotometric…

星系天体物理 · 物理学 2023-07-13 A. S. Gusev , F. Sakhibov , O. V. Egorov , V. S. Kostiuk , E. V. Shimanovskaya

We present a new catalog of HII regions in M31. The full disk of the galaxy is covered in a 2.2 deg^2 mosaic of 10 fields observed with the Mosaic Camera as part of the Local Group Galaxies survey. We used HIIphot, a code for automated…

宇宙学与河外天体物理 · 物理学 2015-05-30 Mohaddesseh Azimlu , Ryan Marciniak , Pauline Barmby

We investigate the ionized gas kinematics of HII regions in the disk of NGC 7331 using integral field unit data collected with the Circumgalactic H$\alpha$ Spectrograph (CH$\alpha$S). NGC 7331 is a well-studied nearby galaxy with HII…

By collecting the information from 24 previously published lists and catalogs, we produce a comprehensive catalog (Master Catalog) of 1442 Galactic HII regions. For each object, we quote the original fluxes and diameters as well as the…

天体物理学 · 物理学 2009-11-07 R. Paladini , C. Burigana , R. D. Davies , D. Maino , M. Bersanelli , B. Cappellini , P. Platania , G. F. Smoot

We derive the molecular properties for a sample of 301 Galactic HII regions including 123 ultra compact (UC), 105 compact, and 73 diffuse nebulae. We analyze all sources within the BU-FCRAO Galactic Ring Survey (GRS) of 13CO emission known…

天体物理学 · 物理学 2009-11-13 L. D. Anderson , T. M. Bania , J. M. Jackson , D. P. Clemens , M. Heyer , R. Simon , R. Y. Shah , J. M. Rathborne

We present an analysis of the integrated Halpha emission line profiles for the HII region population of the spiral galaxies NGC 1530, NGC 6951 and NGC 3359. We show that 70% of the line profiles show two or three Gaussian components. The…

天体物理学 · 物理学 2009-11-10 M. Relano , J. E. Beckman , A. Zurita , M. Rozas , C. Giammanco

We use narrow-band Halpha+[NII] imaging data gathered during VESTIGE, a blind survey of the Virgo cluster carried out with MegaCam at the CFHT, to identify HII regions in 385 galaxies showing ionised gas emission. We identify 76645 HII…

星系天体物理 · 物理学 2026-05-07 A. Boselli , M. Fossati , Y. Roehlly , M. Boquien , J. Braine , P. Cote , J. C. Cuillandre , B. Epinat , L. Ferrarese , S. Gwyn , G. Hensler

We present here our shape analysis method for a sample of 76 Galactic HII regions from MAGPIS 1.4 GHz data. The main goal is to determine whether physical properties and initial conditions of massive star cluster formation is linked to the…

星系天体物理 · 物理学 2018-05-02 Justyn Campbell-White , Dirk Froebrich , Alfred Kume

The census of Galactic HII regions is vastly incomplete in the Southern sky. We use the Australia Telescope Compact Array (ATCA) to observe 4-10 GHz radio continuum and hydrogen radio recombination line (RRL) emission from candidate HII…

The study is devoted to comparing the parameters of the interstellar medium of HII regions in the Kongiu and Groves catalogs for the galaxy NGC 628. The article analyzes the characteristics of star-forming regions, including a comparison of…

星系天体物理 · 物理学 2026-01-16 Ksenia I. Smirnova , Dmitri S. Wiebe

We study the gas emission of galaxies with active star formation, consisting mostly of HII galaxies and Starbursts, as well as some Seyfert 2s, and determine chemical and physical parameters. The data consist of 19 high signal-to-noise…

天体物理学 · 物理学 2009-07-22 D. Raimann , T. Storchi-Bergmann , E. Bica , J. Melnick , H. Schmitt
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