dc.creator | Shaban, Ahmed | |
dc.creator | Bordoloi, Rongmon | |
dc.creator | Chisholm, John | |
dc.creator | Sharma, Soniya | |
dc.creator | Sharon, Keren | |
dc.creator | Rigby, Jane R. | |
dc.creator | Gladders, Michael G. | |
dc.creator | Bayliss, Matthew B. | |
dc.creator | Barrientos, L. Felipe | |
dc.creator | López Morales, Sebastián Víctor Claudio | |
dc.creator | Tejos, Nicolas | |
dc.creator | Ledoux, Cédric | |
dc.creator | Florian, Michael K. | |
dc.date.accessioned | 2023-07-18T13:32:28Z | |
dc.date.accessioned | 2023-09-08T19:08:32Z | |
dc.date.available | 2023-07-18T13:32:28Z | |
dc.date.available | 2023-09-08T19:08:32Z | |
dc.date.created | 2023-07-18T13:32:28Z | |
dc.date.issued | 2022 | |
dc.identifier | The Astrophysical Journal 936:77 (17pp), 2022 | |
dc.identifier | 10.3847/1538-4357/ac7c65 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/194761 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8753224 | |
dc.description.abstract | We image the spatial extent of a cool galactic outflow with fine-structure Fe ii* emission and resonant Mg ii emission in a gravitationally lensed star-forming galaxy at z = 1.70347. The Fe ii* and Mg ii (continuum-subtracted) emissions span out to radial distances of similar to 14.33 and 26.5 kpc, respectively, with maximum spatial extents of similar to 21 kpc for Fe ii* emission and similar to 30 kpc for Mg ii emission. Mg ii emission is patchy and covers a total area of similar to 184 kpc(2), constraining the minimum area covered by the outflowing gas to be similar to 13% of the total area. Mg ii emission is asymmetric and shows similar to 21% more extended emission along the decl. direction. We constrain the covering fractions of the Fe ii* and Mg ii emission as a function of radial distance and characterize them with a power-law model. The Mg ii 2803 emission line shows two kinematically distinct emission components and may correspond to two distinct shells of outflowing gas with a velocity separation of Delta v similar to 400 km s(-1). By using multiple images with different magnifications of the galaxy in the image plane, we trace the Fe ii* and Mg ii emissions around three individual star-forming regions. In all cases, both the Fe ii* and Mg ii emissions are more spatially extended compared to the star-forming regions traced by the [O ii] emission. These findings provide robust constraints on the spatial extent of the outflowing gas and, combined with outflow velocity and column density measurements, will give stringent constraints on mass-outflow rates of the galaxy. | |
dc.language | en | |
dc.publisher | IOP | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | |
dc.source | The Astrophysical Journal | |
dc.subject | Star-forming galaxies | |
dc.subject | II-asterisk emission | |
dc.subject | Circumgalactic medium | |
dc.subject | Starburst galaxy | |
dc.subject | Physical conditions | |
dc.subject | Stellar feedback | |
dc.subject | Lensed galaxy | |
dc.subject | Wind | |
dc.subject | Gas | |
dc.subject | Ultraviolet | |
dc.title | A 30 kpc spatially extended clumpy and asymmetric galactic outflow at z similar to 1.7 | |
dc.type | Artículo de revista | |