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Related papers: Study of star formation in NGC 1084

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The problem of star formation within the interacting pair NGC7733/34 has been studied, based on the UBVRI photometry of the source. The distribution of the colors of selected regions within the galaxies is used to infer an estimate for the…

Astrophysics · Physics 2014-10-13 M. Jahan-Miri , H. G. Khosroshahi

The stellar content of the Im galaxy NGC 2366 is discussed on the basis of CCD BVR photometry. The three brightest blue and red stars have been used to estimate its distance, obtaining a balue of 2.9 Mpc. The spatial distribution of the…

We present high spatial resolution near-infrared broad-band JHK and Br_gamma 2.166 micron and H_2 1-0 S(1) 2.121 micron emission line images of the circumnuclear star formation rings in the LINER/Seyfert 1 galaxy NGC 1097 and the Seyfert 2…

Astrophysics · Physics 2009-10-31 J. K. Kotilainen , J. Reunanen , S. Laine , S. D. Ryder

NGC 2903 is a nearby barred spiral with an active starburst in the center and Hii regions distributed along its bar. We aim to analyse the star formation properties in the bar region of NGC 2903 and study the links with the typical bar…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 G. Popping , I. Perez , A. Zurita

Two blue compact dwarf galaxies Mkn 104 and I Zw 97 are studied photometrically and spectroscopically. Mkn 104 is found to contain three distinct bright star forming regions, whereas I Zw 97 is found to contain three bright and two faint…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 S Ramya , D K Sahu , T P Prabhu

We report new detailed surface U, B, V, R, and I photometry of 81 stellar structures in the disk of the barred galaxy NGC 3367. The images show many different structures indicating that star formation is going on in the most part of the…

We examine star clusters in the irregular, starburst galaxy NGC 1569 from HST images. In addition to the two known super star clusters, we identify 45 other clusters that are compact but resolved. Integrated UVI colors of the clusters span…

Astrophysics · Physics 2009-10-31 D. A. Hunter , R. W. O'Connell , J. S. Gallagher , T. A. Smecker-Hane

The large majority of extragalactic star cluster studies done to date have essentially used two or three-passband aperture photometry, combined with theoretical stellar population synthesis models, to obtain age estimates. The accuracy to…

Astrophysics · Physics 2009-11-07 Richard de Grijs

We present near-infrared emission line images of the circumnuclear ring in NGC1068. We have measured the Br_gamma fluxes in a number of star forming complexes and derived extinctions for each of these by comparison with H_alpha. We…

Astrophysics · Physics 2009-10-30 Richard I. Davies , Hajime Sugai , Martin J. Ward

We present multiband photometric observations of three spiral galaxies selected in a sample suited for the study of young stellar groupings and their relationship with the parent galaxy and the galactic environment. Star forming regions…

Astrophysics · Physics 2007-05-23 P. Battinelli , R. Capuzzo-Dolcetta , P. W. Hodge , A. Vicari , T. K. Wyder

We present broad-band (U, V, I,and H) and narrow-band(H-alpha+[N II] and Paschen-alpha) images of the circumnuclear starburst rings in two nearby spiral galaxies, NGC 1512 and NGC 5248, obtained with WFPC2 and NICMOS on HST. Combined with…

Astrophysics · Physics 2009-11-06 Dan Maoz , Aaron J. Barth , Luis C. Ho , Amiel Sternberg , Alexei V. Filippenko

We present the first results of a survey to obtain Integral Field Spectroscopy of merging galaxies along the Toomre Sequence. In the present work, we concentrate on the star cluster complexes in the Antennae galaxies (NGC 4038/39) in the…

Astrophysics · Physics 2009-11-11 N. Bastian , E. Emsellem , M. Kissler-Patig , C. Maraston

Accurately determining the star formation history in NGC 4038/4039 -- ``The Antennae'' is hampered by extinction. We therefore used near infrared images obtained with ISAAC at the VLT and with SOFI at the NTT to determine the recent star…

Astrophysics · Physics 2009-11-11 Sabine Mengel , Matthew D. Lehnert , Niranjan Thatte , Reinhard Genzel

We have collected archival data on NGC7673 to constrain the star-formation history that produced the young star clusters and the field stellar population in this galaxy during the last 2 Gyr. We have considered the sample of 50 star…

Astrophysics · Physics 2009-11-13 A. Pasquali , P. Castangia

Recent studies have started to cast doubt on the assumption that most stars are formed in clusters. Observational studies of field stars and star cluster systems in nearby galaxies can lead to better constraints on the fraction of stars…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Esteban Silva-Villa , Soeren Larsen

Images obtained with the CFHTIR camera on the Canada-France-Hawaii Telescope are used to investigate the near-infrared photometric properties of the star-forming M81 group galaxy NGC 3077. The spectral-energy distribution (SED) of the…

Astrophysics · Physics 2015-06-24 T. J. Davidge

We present the results of an infrared photometric survey performed with NICS@TNG in the nearby starburst galaxy NGC 4214. We derived accurate integrated JK magnitudes of 10 young massive clusters and compared them with the already available…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 A. Sollima , R. G. Gratton , E. Carretta , A. Bragaglia , S. Lucatello

We present HST optical images and UV spectra, as well as ground-based near-infrared images of the high surface brightness giant HII region NGC 2363 (NGC 2366-I) and its surroundings. The massive star content of the southern end of the dwarf…

Astrophysics · Physics 2009-10-31 L. Drissen , J. -R. Roy , C. Robert , D. Devost , R. Doyon

Abridged: We present a detailed investigation of the morphological distribution and level of star formation and dust obscuration in the nearby tidally distorted galaxy NGC2442. Spitzer images in the IR at 3.6, 4.5, 5.8, 8.0um, and 24um and…

Astrophysics of Galaxies · Physics 2015-05-19 Anna Pancoast , Anna Sajina , Mark Lacy , Alberto Noriega-Crespo , Jeonghee Rho

Results of a study of physical parameters of stellar population in star formation regions in galaxies with signs of peculiarity NGC 3963 and NGC 7292 are presented. The study was carried out based on the analysis of photometric (UBVRI…

Astrophysics of Galaxies · Physics 2024-10-10 A. S. Gusev , F. Kh. Sakhibov , A. V. Moiseev , V. S. Kostiuk , D. V. Oparin
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