Zobrazeno 1 - 10
of 764
pro vyhledávání: '"Bullock, James S."'
Autor:
Barišić, Ivana, Jones, Tucker, Mortensen, Kris, Nanayakkara, Themiya, Chen, Yuguang, Sanders, Ryan, Bullock, James S., Bundy, Kevin, Faucher-Giguère, Claude-André, Glazebrook, Karl, Henry, Alaina, Ju, Mengting, Malkan, Matthew, Morishita, Takahiro, Obreschkow, Danail, Roy, Namrata, Salcedo, Juan M. Espejo, Shapley, Alice E., Treu, Tommaso, Wang, Xin, Westfall, Kyle B.
Integral field spectroscopy (IFS) is a powerful tool for understanding the formation of galaxies across cosmic history. We present the observing strategy and first results of MSA-3D, a novel JWST program using multi-object spectroscopy in a slit-step
Externí odkaz:
http://arxiv.org/abs/2408.08350
Autor:
Feldmann, Robert, Boylan-Kolchin, Michael, Bullock, James S., Çatmabacak, Onur, Faucher-Giguère, Claude-André, Hayward, Christopher C., Kereš, Dušan, Lazar, Alexandres, Liang, Lichen, Moreno, Jorge, Oesch, Pascal A., Quataert, Eliot, Shen, Xuejian, Sun, Guochao
Recent observations with the James Webb Space Telescope (JWST) have uncovered unexpectedly high cosmic star formation activity in the early Universe, mere hundreds of millions of years after the Big Bang. These observations are often understood to re
Externí odkaz:
http://arxiv.org/abs/2407.02674
Autor:
Klein, Courtney, Bullock, James S., Moreno, Jorge, Mercado, Francisco J., Hopkins, Philip F., Cochrane, Rachel K., Benavides, Jose A.
The observationally-inferred size versus stellar-mass relationship (SMR) for low-mass galaxies provides an important test for galaxy formation models. However, the relationship relies on assumptions that relate observed luminosity profiles to underly
Externí odkaz:
http://arxiv.org/abs/2404.02373
Autor:
Staudt, Patrick G., Bullock, James S., Boylan-Kolchin, Michael, Kirkby, David, Wetzel, Andrew, Ou, Xiaowei
Publikováno v:
JCAP 08 (2024) 022
We use FIRE-2 zoom simulations of Milky Way size disk galaxies to derive easy-to-use relationships between the observed circular speed of the Galaxy at the Solar location, $v_\mathrm{c}$, and dark matter properties of relevance for direct detection e
Externí odkaz:
http://arxiv.org/abs/2403.04122
Autor:
Weisz, Daniel R., Dolphin, Andrew E., Savino, Alessandro, McQuinn, Kristen B. W., Newman, Max J. B., Williams, Benjamin F., Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Sandstrom, Karin M., Cole, Andrew A., Warfield, Jack T., Skillman, Evan D., Cohen, Roger E., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, Michael C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Christopher T., Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Tollerud, Erik J., Wetzel, Andrew
We present NIRCam and NIRISS modules for DOLPHOT, a widely-used crowded field stellar photometry package. We describe details of the modules including pixel masking, astrometric alignment, star finding, photometry, catalog creation, and artificial st
Externí odkaz:
http://arxiv.org/abs/2402.03504
Autor:
Cenci, Elia, Feldmann, Robert, Gensior, Jindra, Bullock, James S., Moreno, Jorge, Bassini, Luigi, Bernardini, Mauro
A kinematic misalignment of the stellar and gas components is a phenomenon observed in a significant fraction of galaxies. However, the underlying physical mechanisms are not well understood. A commonly proposed scenario for the formation of a misali
Externí odkaz:
http://arxiv.org/abs/2312.07334
Autor:
Mercado, Francisco J., Bullock, James S., Moreno, Jorge, Boylan-Kolchin, Michael, Hopkins, Philip F., Wetzel, Andrew, Faucher-Giguère, Claude-André, Samuel, Jenna
The Radial Acceleration Relation (RAR) connects the total gravitational acceleration of a galaxy at a given radius, $a_{\rm tot}(r)$, with that accounted for by baryons at the same radius, $a_{\rm bar}(r)$. The shape and tightness of the RAR for rota
Externí odkaz:
http://arxiv.org/abs/2307.09507
Autor:
Lazar, Alexandres, Bullock, James S., Nierenberg, Anna, Moustakas, Leonidas, Boylan-Kolchin, Michael
We introduce an analytic surface density profile for dark matter halos that accurately reproduces the structure of simulated halos of mass $M_{\rm vir} = 10^{7-11}\ M_\odot$, making it useful for modeling line-of-sight perturbers in strong gravitatio
Externí odkaz:
http://arxiv.org/abs/2304.11177
Autor:
Weisz, Daniel R., McQuinn, Kristen B. W., Savino, Alessandro, Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Dolphin, Andrew E., Sandstrom, Karin M., Cole, Andrew A., Williams, Benjamin F., Skillman, Evan D., Cohen, Roger E., Newman, Max J. B., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, M. C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Chris, Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Schmidt, Judy, Tollerud, Erik J., Warfield, Jack T., Wetzel, Andrew
We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultra-faint dwarf galaxy Draco II,
Externí odkaz:
http://arxiv.org/abs/2301.04659
Autor:
Schauer, Anna T. P., Boylan-Kolchin, Michael, Colston, Katelyn, Sameie, Omid, Bromm, Volker, Bullock, James S., Wetzel, Andrew
We study how supersonic streaming velocities of baryons relative to dark matter -- a large-scale effect imprinted at recombination and coherent over $\sim 3$ Mpc scales -- affects the formation of dwarf galaxies at $z \gtrsim 5$. We perform cosmologi
Externí odkaz:
http://arxiv.org/abs/2210.12815