Hubble Space Telescope imaging of the central star forming region in NGC 1140 [SUP]1[/SUP]

1994 ◽  
Vol 108 ◽  
pp. 84 ◽  
Author(s):  
Deidre A. Hunter ◽  
Robert W. O'Connell ◽  
John S., III Gallagher
Keyword(s):  
Hubble Space Telescope ◽  
Central Star ◽  
Space Telescope ◽  
Star Forming

[ITAL]HUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL] Observations of Dust and Star-forming Regions in the Ocular Galaxy IC 2163 and Its Spiral Companion NGC 2207

2001 ◽  
Vol 121 (1) ◽  
pp. 182-197 ◽  
Author(s):  
Debra Meloy Elmegreen ◽  
Michele Kaufman ◽  
Bruce G. Elmegreen ◽  
Elias Brinks ◽  
Curtis Struck ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Star Forming ◽  
Star Forming Regions

scholarly journals Massive Star Formation in the Ultraviolet Observed with the Hubble Space Telescope

Galaxies ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 13 ◽  
Author(s):  
Claus Leitherer
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Hubble Space Telescope ◽  
Spectral Synthesis ◽  
Star Clusters ◽  
Large Magellanic Cloud ◽  
H Ii Regions ◽  
Massive Star Formation ◽  
Space Telescope ◽  
Star Forming

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.

scholarly journals Star-forming galaxies at z≈ 8-9 from Hubble Space Telescope/WFC3: implications for reionization

2011 ◽  
Vol 414 (2) ◽  
pp. 1455-1466 ◽  
Author(s):  
Silvio Lorenzoni ◽  
Andrew J. Bunker ◽  
Stephen M. Wilkins ◽  
Elizabeth R. Stanway ◽  
Matt J. Jarvis ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Star Forming

scholarly journals Hubble Space Telescope imaging survey of sub-mJy star-forming galaxies — I. Morphologies at z ∼ 0.2

2000 ◽  
Vol 317 (2) ◽  
pp. L29-L33 ◽  
Author(s):  
Stephen Serjeant ◽  
Bahram Mobasher ◽  
Carlotta Gruppioni ◽  
Seb Oliver
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Star Forming

scholarly journals COSMIC REIONIZATION AND EARLY STAR-FORMING GALAXIES: A JOINT ANALYSIS OF NEW CONSTRAINTS FROM PLANCK AND THE HUBBLE SPACE TELESCOPE

2015 ◽  
Vol 802 (2) ◽  
pp. L19 ◽  
Author(s):  
Brant E. Robertson ◽  
Richard S. Ellis ◽  
Steven R. Furlanetto ◽  
James S. Dunlop
Keyword(s):  
Hubble Space Telescope ◽  
Joint Analysis ◽  
Space Telescope ◽  
Star Forming

scholarly journals Asymmetric surface brightness structure of caustic crossing arc in SDSS J1226+2152: a case for dark matter substructure

2020 ◽  
Vol 495 (3) ◽  
pp. 3192-3208
Author(s):  
Liang Dai ◽  
Alexander A Kaurov ◽  
Keren Sharon ◽  
Michael Florian ◽  
Jordi Miralda-Escudé ◽  
...  
Keyword(s):  
Dark Matter ◽  
Surface Brightness ◽  
Cold Dark Matter ◽  
Hubble Space Telescope ◽  
Galaxy Cluster ◽  
Critical Curve ◽  
Space Telescope ◽  
Star Forming ◽  
James Webb Space Telescope ◽  
Image Pairs

ABSTRACT We study the highly magnified arc SGAS J122651.3+215220 caused by a star-forming galaxy at zs = 2.93 crossing the lensing caustic cast by the galaxy cluster SDSS J1226+2152 (zl = 0.43), using Hubble Space Telescope observations. We report in the arc several asymmetric surface brightness features whose angular separations are a fraction of an arcsecond from the lensing critical curve and appear to be highly but unequally magnified image pairs of underlying compact sources, with one brightest pair having clear asymmetry consistently across four filters. One explanation of unequal magnification is microlensing by intracluster stars, which induces independent flux variations in the images of individual or groups of source stars in the lensed galaxy. For a second possibility, intracluster dark matter subhaloes invisible to telescopes effectively perturb lensing magnifications near the critical curve and give rise to persistently unequal image pairs. Our modelling suggests, at least for the most prominent identified image pair, that the microlensing hypothesis is in tension with the absence of notable asymmetry variation over a six-year baseline, while subhaloes of ∼106–$10^8\, \mathrm{ M}_\odot$ anticipated from structure formation with cold dark matter typically produce stationary and sizable asymmetries. We judge that observations at additional times and more precise lens models are necessary to stringently constrain temporal variability and robustly distinguish between the two explanations. The arc under this study is a scheduled target of a Director’s Discretionary Early Release Science program of the James Webb Space Telescope, which will provide deep images and a high-resolution view with integral field spectroscopy.

scholarly journals Hubble Space Telescope Ultraviolet Images of Five Circumnuclear Star-Forming Rings

1996 ◽  
Vol 111 ◽  
pp. 2248 ◽  
Author(s):  
D. Maoz ◽  
A. J. Barth ◽  
A. Sternberg ◽  
A. V. Filippenko ◽  
L. C. Ho ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Star Forming

Hubble Space Telescope Observations of Circumnuclear Star-Forming Rings in NGC 1097 and NGC 6951

1995 ◽  
Vol 110 ◽  
pp. 1009 ◽  
Author(s):  
Aaron J. Barth ◽  
Luis C. Ho ◽  
Alexei V. Filippenko ◽  
Wallace L. Sargent
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Star Forming
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