Massive Star Formation in Luminous Infrared Galaxies: Giant H [CSC]ii[/CSC] Regions and Their Relation to Super–Star Clusters

2002 ◽  
Vol 124 (1) ◽  
pp. 166-182 ◽  
Author(s):  
Almudena Alonso-Herrero ◽  
George H. Rieke ◽  
Marcia J. Rieke ◽  
Nick Z. Scoville
2009 ◽  
Vol 324 (2-4) ◽  
pp. 333-336
Author(s):  
Almudena Alonso-Herrero ◽  
Tanio Díaz-Santos ◽  
Macarena García-Marín ◽  
Luis Colina ◽  
Santiago Arribas ◽  
...  

2002 ◽  
Vol 207 ◽  
pp. 464-467
Author(s):  
N. Homeier ◽  
J.S. Gallagher

We present an analysis of super star cluster populations using WFPC 2 on theHubble Space Telescopefor two starburst galaxies: NGC 7673 and Markarian 8. Both galaxies are luminious and have signatures of massive star formation, such as emission-line dominated optical spectra. Their optical appearances are highly disturbed, featuring prominent knots of intense star formation. Using HST F255W, F555W, and F814W images, we perform aperture photometry for a select sample of star clusters in different regions of each galaxy, and compare the results with evolutionary population synthesis models.


2005 ◽  
Vol 620 (1) ◽  
pp. 217-222 ◽  
Author(s):  
Guillermo Tenorio‐Tagle ◽  
Sergiy Silich ◽  
Ary Rodriguez‐Gonzalez ◽  
Casiana Munoz‐Tunon

2000 ◽  
Vol 120 (2) ◽  
pp. 645-669 ◽  
Author(s):  
S. Lípari ◽  
R. Díaz ◽  
Y. Taniguchi ◽  
R. Terlevich ◽  
H. Dottori ◽  
...  

Galaxies ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 13 ◽  
Author(s):  
Claus Leitherer

Spectroscopic observations of a massive star formation in the ultraviolet and their interpretation are reviewed. After a brief historical retrospective, two well-studied resolved star clusters and the surrounding H II regions are introduced: NGC 2070 in the Large Magellanic Cloud and NGC 604 in M33. These regions serve as a training set for studies of more distant clusters, which can no longer be resolved into individual stars. Observations of recently formed star clusters and extended regions in star-forming galaxies in the nearby universe beyond the Local Group are presented. Their interpretation relies on spectral synthesis models. The successes and failures of such models are discussed, and future directions are highlighted. I present a case study of the extraordinary star cluster and giant H II region in the blue compact galaxy II Zw 40. The review concludes with a preview of two upcoming Hubble Space Telescope programs: ULLYSES, a survey of massive stars in nearby galaxies, and CLASSY, a study of massive star clusters in star-forming galaxies.


2013 ◽  
Vol 554 ◽  
pp. A48 ◽  
Author(s):  
V. M. Rivilla ◽  
J. Martín-Pintado ◽  
I. Jiménez-Serra ◽  
A. Rodríguez-Franco

2010 ◽  
Vol 6 (S277) ◽  
pp. 37-40
Author(s):  
Zara Randriamanakoto ◽  
Petri Väisänen

AbstractYoung and massive super star clusters (SSCs) are found whenever very active star formation is going on, such as that in interacting Luminous Infrared Galaxies (LIRGs). From a deep NIR adaptive optics imaging survey, we present thus far the first K-band SSC luminosity functions (LFs) in these types of galaxies, and also a relation between the brightest SSC and the global SFR of the galaxy. Based on the derived LFs, one can constrain the cluster initial mass function (CIMF) and study the formation and evolution of SSCs. Our preliminary results are in disagreement with theoretical expectations which suggest that the SSC LF should be well fitted by a single power-law with an index of −2. We find power-law indexes of ~−1.5, shallower than the expected ones. Taken at face value, our results appear to support the concept that the CIMF is mass-dependent, not universal, which will be studied in more detail by mass-modelling of the SSCs. The data-set will also allow us to estimate the fraction of total star formation originating in the SSCs over a range of galaxy types.


2009 ◽  
Vol 5 (S266) ◽  
pp. 447-450
Author(s):  
Patricio Lagos ◽  
Eduardo Telles ◽  
E. R. Carrasco

AbstractWe summarize our results based on observations with the NIRI camera on the Gemini North telescope of three Hii galaxies (Mrk 36, UM 408 and UM 461), obtained to identify and determine the ages and masses of the elementary components (the star cluster population) of the starburst regions in compact Hii galaxies. Our preliminary results indicate that the masses of the stellar clusters in these galaxies range from ~104 to ~106 M⊙, with associated ages of a few Myr. The most massive star clusters fall in the so-called super star cluster category. The identification of these clusters suggests that the formation and evolution of massive star clusters is the dominant mode of star formation in these galaxies. Their spatial distribution and ages seem to indicate that star formation is simultaneous over these timescales in some of our objects. We also review our recent description of the spatial distribution of physical conditions in the Hii galaxy UM 408 using the GMOS integral-field unit on Gemini South. The spatial distribution of the oxygen abundance does not show any significant variation or gradient across the galaxy on scales of hundreds of parsecs, within our observational uncertainties, confirming that this compact Hii galaxy, like other previously studied dwarf irregular galaxies, is chemically homogeneous.


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