Matches in SemOpenAlex for { <https://semopenalex.org/work/W3204365049> ?p ?o ?g. }
- W3204365049 endingPage "146" @default.
- W3204365049 startingPage "146" @default.
- W3204365049 abstract "Strong galactic winds are ubiquitous at $zgtrsim 1$. However, it is not well known where inside galaxies these winds are launched from. We study the cool winds ($sim 10^4$,K) in two spatial regions of a massive galaxy at $z=1.3$, which we nickname the Baltimore Oriole's Nest. The galaxy has a stellar mass of $10^{10.3pm 0.3} M_odot$, is located on the star-forming main sequence, and has a morphology indicative of a recent merger. Gas kinematics indicate a dynamically complex system with velocity gradients ranging from 0 to 60 $mathrm{km}cdotmathrm{s}^{-1}$. The two regions studied are: a dust-reddened center (Central region), and a blue arc at 7 kpc from the center (Arc region). We measure the ion{Fe}{2} and ion{Mg}{2} absorption line profiles from deep Keck/DEIMOS spectra. Blueshifted wings up to 450 km$cdot$s$^{-1}$ are found for both regions. The ion{Fe}{2} column densities of winds are $10^{14.7pm 0.2},mathrm{cm}^{-2}$ and $10^{14.6pm 0.2},mathrm{cm}^{-2}$ toward the Central and Arc regions, respectively. Our measurements suggest that the winds are most likely launched from both regions. The winds may be driven by the spatially extended star formation, the surface density of which is around 0.2 $M_odot,mathrm{yr}^{-1}cdot mathrm{kpc}^{-2}$ in both regions. The mass outflow rates are estimated to be $4,M_odot,mathrm{yr}^{-1}$ and $3,M_odot,mathrm{yr}^{-1}$ for the Central and Arc regions, with uncertainties of one order-of-magnitude or more. Findings of this work and a few previous studies suggest that the cool galactic winds at $zgtrsim 1$ might be commonly launched from the entire spatial extents of their host galaxies due to extended galaxy star formation." @default.
- W3204365049 created "2021-10-11" @default.
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- W3204365049 date "2022-05-01" @default.
- W3204365049 modified "2023-09-30" @default.
- W3204365049 title "The Baltimore Oriole’s Nest: Cool Winds from the Inner and Outer Parts of a Star-forming Galaxy at z = 1.3" @default.
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