Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Panithanpaisal, Nondh"'
Autor:
Lucey, Madeline, Sanderson, Robyn, Horta, Danny, Kundu, Aritra, Hopkins, Philip F., Arora, Arpit, Singh, Jasjeev, Panithanpaisal, Nondh
$\Lambda$CDM cosmology predicts the hierarchical formation of galaxies which build up mass by merger events and accreting smaller systems. The stellar halo of the Milky Way has proven to be useful a tool for tracing this accretion history. However, m
Externí odkaz:
http://arxiv.org/abs/2410.03627
Autor:
Arora, Arpit, Sanderson, Robyn, Regan, Christopher, Garavito-Camargo, Nicolás, Bregou, Emily, Panithanpaisal, Nondh, Wetzel, Andrew, Cunningham, Emily C., Loebman, Sarah R., Dropulic, Adriana, Shipp, Nora
We construct time-evolving gravitational potential models for a Milky Way-mass galaxy from the FIRE-2 suite of cosmological-baryonic simulations using basis function expansions. These models capture the angular variation with spherical harmonics for
Externí odkaz:
http://arxiv.org/abs/2407.12932
Autor:
Thob, Adrien C. R., Sanderson, Robyn E., Eden, Andrew P., Nikakhtar, Farnik, Panithanpaisal, Nondh, Garavito-Camargo, Nicolás, Sharma, Sanjib
We find ourselves on the brink of an exciting era in observational astrophysics, driven by groundbreaking facilities like JWST, Euclid, Rubin, Roman, SKA, or ELT. Simultaneously, computational astrophysics has shown significant strides, yielding high
Externí odkaz:
http://arxiv.org/abs/2312.02268
Autor:
Donlon II, Thomas, Newberg, Heidi Jo, Sanderson, Robyn, Bregou, Emily, Horta, Danny, Arora, Arpit, Panithanpaisal, Nondh
The Milky Way's (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the "last major merger." Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenit
Externí odkaz:
http://arxiv.org/abs/2310.09376
Autor:
Arora, Arpit, Garavito-Camargo, Nicolás, Sanderson, Robyn E., Cunningham, Emily C., Wetzel, Andrew, Panithanpaisal, Nondh, Barry, Megan
Dark Matter (DM) subhalos are predicted to perturb stellar streams; stream morphologies and dynamics can constrain the mass distribution of subhalos. Using FIRE-2 simulations of Milky Way-mass galaxies, we show that presence of a Large Magellanic Clo
Externí odkaz:
http://arxiv.org/abs/2309.15998
Autor:
Nguyen, Tri, Ou, Xiaowei, Panithanpaisal, Nondh, Shipp, Nora, Necib, Lina, Sanderson, Robyn, Wetzel, Andrew
The third data release (DR3) of Gaia has provided a five-fold increase in the number of radial velocity measurements of stars, as well as a stark improvement in parallax and proper motion measurements. To help with studies that seek to test models an
Externí odkaz:
http://arxiv.org/abs/2306.16475
Autor:
Baptista, Jay, Sanderson, Robyn, Huber, Dan, Wetzel, Andrew, Sameie, Omid, Boylan-Kolchin, Michael, Bailin, Jeremy, Hopkins, Philip F., Faucher-Giguere, Claude-Andre, Chakrabarti, Sukanya, Vargya, Drona, Panithanpaisal, Nondh, Arora, Arpit, Cunningham, Emily
The shape and orientation of dark matter (DM) halos are sensitive to the micro-physics of the DM particle, yet in many mass models, the symmetry axes of the Milky Way's DM halo are often assumed to be aligned with the symmetry axes of the stellar dis
Externí odkaz:
http://arxiv.org/abs/2211.16382
Autor:
Horta, Danny, Cunningham, Emily C., Sanderson, Robyn E., Johnston, Kathryn V., Panithanpaisal, Nondh, Arora, Arpit, Necib, Lina, Wetzel, Andrew, Bailin, Jeremy, Faucher-Giguère, Claude-André
In the $\Lambda$-Cold Dark Matter model of the Universe, galaxies form in part through accreting satellite systems. Previous work have built an understanding of the signatures of these processes contained within galactic stellar halos. This work revi
Externí odkaz:
http://arxiv.org/abs/2211.05799
Autor:
Panithanpaisal, Nondh, Sanderson, Robyn E., Arora, Arpit, Cunningham, Emily C., Baptista, Jay
Recent studies have suggested that the Milky Way (MW)'s Dark Matter (DM) halo may be significantly tilted with respect to its central stellar disk, a feature that might be linked to its formation history. In this work, we demonstrate a method of cons
Externí odkaz:
http://arxiv.org/abs/2210.14983
Autor:
Shipp, Nora, Panithanpaisal, Nondh, Necib, Lina, Sanderson, Robyn, Erkal, Denis, Li, Ting S., Santistevan, Isaiah B., Wetzel, Andrew, Cullinane, Lara R., Ji, Alexander P., Koposov, Sergey E., Kuehn, Kyler, Lewis, Geraint F., Pace, Andrew B., Zucker, Daniel B., Bland-Hawthorn, Joss, Cunningham, Emily C., Kim, Stacy Y., Lilleengen, Sophia, Moreno, Jorge, Sharma, Sanjib
We present the first detailed study comparing the populations of stellar streams in cosmological simulations to observed Milky Way dwarf galaxy streams. In particular, we compare streams identified around Milky Way analogs in the FIRE-2 simulations t
Externí odkaz:
http://arxiv.org/abs/2208.02255