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Related papers: Star Formation in the Interacting Pair NGC7733/34

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[Abridged] We map the stellar age distribution ($\lesssim 1$ Gyr) across a 6kpc$\,\times\,$6kpc area of the Galactic disc to constrain our Galaxy's recent star-formation history. Our modelling draws on the sample of Zari et al. (2021) that…

Astrophysics of Galaxies · Physics 2022-12-21 E. Zari , N. Frankel , H. -W. Rix

Images recorded with MegaCam are used to investigate the recent star-forming history (SFH) of the Local Group Sc galaxy M33. The properties of the stellar disk change near R = 8 kpc. Within this radius the star formation rate (SFR) has been…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 T. J. Davidge , T. H. Puzia

Observations of the Galactic Centre show evidence of disc-like structures of very young stars orbiting the central super-massive black hole within a distance of a few 0.1 pc. While it is widely accepted that about half of the stars form a…

Astrophysics of Galaxies · Physics 2015-05-13 Ulf Löckmann , Holger Baumgardt

We present a preliminary study of the star formation distribution within three Virgo Cluster galaxies using the 24 micron Spitzer observations from the Spitzer Survey of Virgo (SPITSOV) in combination with H-alpha observations. The purpose…

Astrophysics · Physics 2008-02-26 O. Ivy Wong , Jeffrey D. P. Kenney

We examine the spatial distribution of star clusters in NGC 628 using the statistical tool INDICATE to quantify clustering tendencies. Our sample, based on HST and JWST observations, is the most complete to date, spanning ages from 1 Myr to…

We examine the star clusters in the irregular galaxy NGC 4449. We use a near-infrared spectrum and broad-band images taken with the HST to place a limit of 8--15 Myrs on the age of the bright central ojbect in NGC 4449. Its luminosity and…

Astrophysics · Physics 2009-10-31 Andrea E. Gelatt , Deidre A. Hunter , J. S. Gallagher

We present a study of the properties of star-forming regions within a sample of 7 Wolf-Rayet (WR) galaxies. We analyze their morphologies, colours, star-formation rate (SFR), metallicities, and stellar populations combining broad-band and…

Cosmology and Nongalactic Astrophysics · Physics 2013-12-02 Chrisphin Karthick. M , Angel R. Lopez-Sanchez , D. K. Sahu , B. B. Sanwal , Shuchi Bisht

The star formation history of nearby early-type galaxies is investigated via numerical modelling. Idealized hydrodynamical N-body simulations with a star formation prescription are used to study the minor merger process between a giant…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Peirani , R. M. Crockett , S. Geen , S. Khochfar , S. Kaviraj , J. Silk

The star formation history of the dE NGC 185, together with its spatial variations, has been investigated using new ground-based $H_\alpha$ and $BVI$ photometry, and synthetic color--magnitude diagrams (CMDs). We find that the bulk of the…

Astrophysics · Physics 2016-08-30 D. Martinez-Delgado , A. Aparicio , C. Gallart

We present observations of the star formation region NGC 7129 taken with the Multiband Imaging Photometer for Spitzer (MIPS). A significant population of sources, likely pre-main sequence members of the young stellar cluster, is revealed…

Context: Compact groups of galaxies are entities that have high densities of galaxies and serve as laboratories to study galaxy interactions, intergalactic star formation and galaxy evolution. Aims: The main goal of this study is to search…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Torres-Flores , C. Mendes de Oliveira , D. F. de Mello , P. Amram , H. Plana , B. Epinat , J. Iglesias-Paramo

With multiband photometric data in public archives, we detected four intracluster star-forming regions in the Virgo cluster. Two of them were at a projected distance of 35 kpc away from NGC4388, and the other two were 66 kpc away. Our new…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Masafumi Yagi , Liyi Gu , Yutaka Fujita , Kazuhiro Nakazawa , Takuya Akahori , Takashi Hattori , Michitoshi Yoshida , Kazuo Makishima

NGC 1232 is a face-on spiral galaxy and a great laboratory for the study of star-formation due to its proximity. We obtained high spatial resolution H{\alpha} images of this galaxy, with adaptive optics, using the SAM instrument at the SOAR…

Astrophysics of Galaxies · Physics 2018-05-28 Alexandre Araújo de Souza , Lucimara P. Martins , Alberto Rodríguez-Ardila , Luciano Fraga

We present near ultraviolet imaging with the Hubble Space Telescope Advanced Camera for Surveys, targeting young radio galaxies (Gigahertz Peaked Spectrum and Compact Steep Spectrum sources), in search of star formation regions in their…

Astrophysics · Physics 2009-11-11 A. Labiano , C. P. O'Dea , P. D. Barthel , W. H. de Vries , S. A. Baum

We present a comprehensive study of the star-formation properties of the infrared luminous galaxy Arp299 (IC694 + NGC3690). The observations include HST/NICMOS imaging and MMT optical and near-infrared spectroscopy together with HST…

Astrophysics · Physics 2009-10-31 A. Alonso-Herrero , G. H. Rieke , M. J. Rieke , N. Z. Scoville

Globular Cluster (GC) formation seems to be a widespread mode of star formation in extreme starbursts triggered by strong interactions and mergers of massive gas-rich galaxies. We use our detailed chemically consistent evolutionary…

Astrophysics · Physics 2015-06-10 Uta Fritze -- v. Alvensleben

We report the first two-dimensional stellar population synthesis in the near-infrared of the nuclear region of an active galaxy, namely Mrk1066. We have used integral field spectroscopy with adaptive optics at the Gemini North Telescope to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Rogemar A. Riffel , Thaisa Storchi-Bergmann , Rogerio Riffel , Miriani Pastoriza

We present a near infrared study focused on the detection and characterization of the youngest stellar component of the NGC 604 giant star-forming region, in the Triangulum galaxy (M 33). By means of color-color diagrams derived from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Cecilia Farina , Guillermo L. Bosch , Rodolfo H. Barba

NGC6357 is an active star forming region with very young massive open clusters (OC). These clusters contain some of the most massive stars in the Galaxy and strongly interact with nearby giant molecular clouds (GMC). We study the young…

Solar and Stellar Astrophysics · Physics 2014-12-24 Fabrizio Massi , Andrea Giannetti , Elisa di Carlo , Jan Brand , Maria Teresa Beltrán , Gianni Marconi

Spitzer IRAC observations of two fields in the XUV-disk of M83 have been recently obtained,3R_{HII} away from the center of the galaxy (R_{HII)=6.6 kpc).GALEX UV images have shown the two fields to host in-situ recent star formation.The…

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