Sökning: WFRF:(Verhamme Anne) > (2010-2014) > THE LYMAN ALPHA REF...
Fältnamn | Indikatorer | Metadata |
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000 | 03906naa a2200565 4500 | |
001 | oai:DiVA.org:su-88993 | |
003 | SwePub | |
008 | 130408s2013 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-889932 URI |
024 | 7 | a https://doi.org/10.1088/2041-8205/765/2/L272 DOI |
040 | a (SwePub)su | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Hayes, Matthew4 aut |
245 | 1 0 | a THE LYMAN ALPHA REFERENCE SAMPLE :b EXTENDED LYMAN ALPHA HALOS PRODUCED AT LOW DUST CONTENT |
264 | 1 | c 2013 |
338 | a print2 rdacarrier | |
500 | a AuthorCount:17; | |
520 | a We report on new imaging observations of the Lyman alpha emission line (Ly alpha), performed with the Hubble Space Telescope, that comprise the backbone of the Lyman alpha Reference Sample. We present images of 14 starburst galaxies at redshifts 0.028 < z < 0.18 in continuum-subtracted Ly alpha, H alpha, and the far ultraviolet continuum. We show that Ly alpha is emitted on scales that systematically exceed those of the massive stellar population and recombination nebulae: as measured by the Petrosian 20% radius, RP20, Ly alpha radii are larger than those of H alpha by factors ranging from 1 to 3.6, with an average of 2.4. The average ratio of Ly alpha-to-FUV radii is 2.9. This suggests that much of the Ly alpha light is pushed to large radii by resonance scattering. Defining the Relative Petrosian Extension of Ly alpha compared to H alpha, xi(Ly alpha) = R-P20(Ly alpha)/R-P20(H alpha), we find xi(Ly alpha) to be uncorrelated with total Ly alpha luminosity. However, xi(Ly alpha) is strongly correlated with quantities that scale with dust content, in the sense that a low dust abundance is a necessary requirement (although not the only one) in order to spread Ly alpha photons throughout the interstellar medium and drive a large extended Ly alpha halo. | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a cosmology: observations | |
653 | a galaxies: evolution | |
653 | a galaxies: formation | |
653 | a galaxies: starburst | |
653 | a radiative transfer | |
653 | a Astronomy | |
653 | a astronomi | |
700 | 1 | a Östlin, Göranu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)ostlin |
700 | 1 | a Schaerer, Daniel4 aut |
700 | 1 | a Verhamme, Anne4 aut |
700 | 1 | a Mas-Hesse, J. Miguel4 aut |
700 | 1 | a Adamo, Angela4 aut |
700 | 1 | a Atek, Hakim4 aut |
700 | 1 | a Cannon, John M.4 aut |
700 | 1 | a Duval, Florentu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)fduva |
700 | 1 | a Guaita, Luciau Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)lguai |
700 | 1 | a Herenz, E. Christian4 aut |
700 | 1 | a Kunth, Daniel4 aut |
700 | 1 | a Laursen, Peter4 aut |
700 | 1 | a Melinder, Jensu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)jeand |
700 | 1 | a Orlitova, Ivana4 aut |
700 | 1 | a Oti-Floranes, Hector4 aut |
700 | 1 | a Sandberg, Andreasu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)ansa2525 |
710 | 2 | a Stockholms universitetb Institutionen för astronomi4 org |
773 | 0 | t Astrophysical Journal Lettersg 765:2, s. L27-q 765:2<L27-x 2041-8205x 2041-8213 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-88993 |
856 | 4 8 | u https://doi.org/10.1088/2041-8205/765/2/L27 |
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