Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Andrew Emerick"'
Autor:
Chia-Yu Hu, Matthew C. Smith, Romain Teyssier, Greg L. Bryan, Robbert Verbeke, Andrew Emerick, Rachel S. Somerville, Blakesley Burkhart, Yuan Li, John C. Forbes, Tjitske Starkenburg
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 132 (2023)
We present a suite of high-resolution simulations of an isolated dwarf galaxy using four different hydrodynamical codes: Gizmo , Arepo , Gadget , and Ramses . All codes adopt the same physical model, which includes radiative cooling, photoelectric he
Externí odkaz:
https://doaj.org/article/e587e99edbf04272b834ea55a32790bc
Autor:
Lori E Porter, Matthew E Orr, Blakesley Burkhart, Andrew Wetzel, Xiangcheng Ma, Philip F Hopkins, Andrew Emerick
We present an analysis of spatially resolved gas-phase metallicity relations in five dwarf galaxies ($M_{halo} \approx 10^{11} M_\odot$, $M_\star \approx 10^{8.8}-10^{9.6} M_\odot$) from the FIRE-2 (Feedback in Realistic Environments) cosmological zo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48d3d98029981ddf70449c632c5d376a
https://resolver.caltech.edu/CaltechAUTHORS:20220817-927599000
https://resolver.caltech.edu/CaltechAUTHORS:20220817-927599000
Autor:
Andrew Emerick, Joseph N. Burchett, Mary E. Putman, Felix J. Lockman, Benjamin D. Oppenheimer, Andrew J. Fox, Evan N. Kirby, Kristen B. W. McQuinn, Jessica K. Werk, Yong Zheng
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 490:467-477
We report a tentative detection of the circumgalactic medium (CGM) of WLM, an isolated, low-mass (log$M_*/M_\odot\approx7.6$), dwarf irregular galaxy in the Local Group (LG). We analyze an HST/COS archival spectrum of a quasar sightline (PHL2525), wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4ecbe5a1cce3b0cd9a9c7c3c2d7e8f7
https://doi.org/10.1093/mnras/stz2563
https://doi.org/10.1093/mnras/stz2563
Publikováno v:
Monthly Notices of the Royal Astronomical Society, vol 508, iss 1
In hydrodynamic simulations, prevailing subgrid chemical-evolution models often use a single, "IMF-averaged" supernova yield, ignoring variations in elemental abundance ratios (particularly [$\alpha$/Fe]) in the ejecta of higher- and lower-mass super
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4409254e9fc7d404b4f7fe99a46d254d
https://escholarship.org/uc/item/6zb0c2dq
https://escholarship.org/uc/item/6zb0c2dq
Autor:
Sergey E. Koposov, Andrew Emerick, Vasily Belokurov, Kristen B. W. McQuinn, Nimisha Kumari, Roberto Maiolino, Daniel P. Stark, B. James
Publikováno v:
James, B L, Kumari, N, Emerick, A, Koposov, S E, McQuinn, K B W, Stark, D P, Belokurov, V & Maiolino, R 2020, ' Exploring Chemical Homogeneity in Dwarf Galaxies : A VLT-MUSE study of JKB 18 ', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 3, pp. 2564-2581 . https://doi.org/10.1093/mnras/staa1280, https://doi.org/10.1093/mnras/staa1280
Deciphering the distribution of metals throughout galaxies is fundamental in our understanding of galaxy evolution. Nearby, low-metallicity, star-forming dwarf galaxies in particular can offer detailed insight into the metal-dependent processes that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59c3b23b10a2fe27a2d2ba2c8c89b869
One-zone models constructed to match observed stellar abundance patterns have been used extensively to constrain the sites of nucleosynthesis with sophisticated libraries of stellar evolution and stellar yields. The metal mixing included in these mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d2b848d7c68e4f46b2d21f004184a6d
https://resolver.caltech.edu/CaltechAUTHORS:20200225-135943724
https://resolver.caltech.edu/CaltechAUTHORS:20200225-135943724
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 482:1304-1329
In order to better understand the relationship between feedback and galactic chemical evolution, we have developed a new model for stellar feedback at grid resolutions of only a few parsecs in global disk simulations, using the adaptive mesh refineme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0392c0b2d3ab2068ce557a4c91c88d1c
https://doi.org/10.1093/mnras/sty2689
https://doi.org/10.1093/mnras/sty2689
Autor:
Evan N. Kirby, Andrew Emerick, Joshua E. G. Peek, Yong Zheng, Mary E. Putman, Jessica K. Werk
Publikováno v:
The Astrophysical Journal. 905:133
Using 10 sightlines observed with the Hubble Space Telescope/Cosmic Origins Spectrograph, we study the circumgalactic medium (CGM) and outflows of IC1613, which is a low-mass ($M_*\sim10^8~M_\odot$), dwarf irregular galaxy on the outskirts of the Loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23b2c6c23b3596b294f260ae362d3318
https://doi.org/10.3847/1538-4357/abc875
https://doi.org/10.3847/1538-4357/abc875
Autor:
Benoit Côté, Brian W. O'Shea, Andrew Emerick, Greg L. Bryan, Kathryn V. Johnston, Mordecai-Mark Mac Low
Publikováno v:
The Astrophysical Journal
Using a high resolution simulation of an isolated dwarf galaxy, accounting for multi-channel stellar feedback and chemical evolution on a star-by-star basis, we investigate how each of 15 metal species are distributed within our multi-phase interstel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb04e345b28d003b412c2fc0a00c1b0d
The evolution of dwarf satellites of the Milky Way is affected by the combination of ram pressure and tidal stripping, and internal feedback from massive stars. We investigate gas loss processes in the smallest satellites of the Milky Way using three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c8ef59a4033bff359e5c904aa3a911f