Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Erik Tollerud"'
Autor:
Jeanette Falk, Alexander Nolte, Daniela Huppenkothen, Marion Weinzierl, Kiev Gama, Daniel Spikol, Erik Tollerud, Neil P. Chue Hong, Ines Knapper, Linda Bailey Hayden
Publikováno v:
IEEE Access, Vol 12, Pp 133406-133425 (2024)
Hackathons are time-bounded collaborative events that have become a global phenomenon and are adopted by researchers and practitioners in a plethora of contexts. Hackathon events generally accelerate the development of scientific results and collabor
Externí odkaz:
https://doaj.org/article/d0bb51f337934604906e9c670d80e5fb
Autor:
L. R. Cullinane, Karoline M. Gilbert, Ivanna Escala, J. Leigh Wojno, Evan N. Kirby, Kateryna A. Kvasova, Erik Tollerud, Michelle L. M. Collins, R. Michael Rich
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 133 (2024)
With a luminosity similar to that of Milky Way dwarf spheroidal systems like Sextans, but a spatial extent similar to that of ultra-diffuse galaxies, Andromeda (And) XIX is an unusual satellite of M31. To investigate the origin of this galaxy, we mea
Externí odkaz:
https://doaj.org/article/84ca5411acc642eda254f5e41c81cb66
Autor:
Paul Bennet, Ekta Patel, Sangmo Tony Sohn, Andrés del Pino Molina, Roeland P. van der Marel, Mattia Libralato, Laura L. Watkins, Antonio Aparicio, Gurtina Besla, Carme Gallart, Mark A. Fardal, Matteo Monelli, Elena Sacchi, Erik Tollerud, Daniel R. Weisz
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 98 (2024)
We have determined the proper motions (PMs) of 12 dwarf galaxies in the Local Group (LG), ranging from the outer Milky Way (MW) halo to the edge of the LG. We used the Hubble Space Telescope (HST) as the first and Gaia as the second epoch using the G
Externí odkaz:
https://doaj.org/article/94aa8ef67f184997ae2d546936fb9d49
Autor:
L. R. Cullinane, Karoline M. Gilbert, Puragra Guhathakurta, A. C. N. Quirk, Ivanna Escala, Adam Smercina, Benjamin F. Williams, Erik Tollerud, Jessamine Qu, Kaela McConnell
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 157 (2023)
The dwarf galaxy Triangulum (M33) presents an interesting testbed for studying stellar halo formation: it is sufficiently massive so as to have likely accreted smaller satellites, but also lies within the regime where feedback and other “in situ”
Externí odkaz:
https://doaj.org/article/b0bf4192709f4604a3a67629ec85ed61
Autor:
Daniel F. Ryan, Stuart Mumford, Will T. Barnes, Ankit Kumar Baruah, Adwait Bhope, Éric Buchlin, Nabil Freij, Adam Ginsburg, Laura A. Hayes, Derek Homeier, J. Marcus Hughes, Chris Lowder, Richard O’Steen, Baptiste Pellorce, Thomas Robitaille, Yash Sharma, David Stansby, Albert Y. Shih, Erik Tollerud, Micah J. Weberg, Matthew J. West
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 1, p 44 (2023)
The NDCube 2 API is a Python application programming interface (API) for storing and manipulating N-dimensional coordinate-aware astronomical data. While there are Python packages for handling astronomical data and coordinate transformations separate
Externí odkaz:
https://doaj.org/article/92836f43a0d5467f953d586206b787b2
Autor:
Jenna Samuel, Andrew Wetzel, Isaiah Santistevan, Erik Tollerud, Jorge Moreno, Michael Boylan-Kolchin, Jeremy Bailin, Bhavya Pardasani
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 514:5276-5295
The star formation and gas content of satellite galaxies around the Milky Way (MW) and Andromeda (M31) are depleted relative to more isolated galaxies in the Local Group (LG) at fixed stellar mass. We explore the environmental regulation of gas conte
The orbits of satellite galaxies encode rich information about their histories. We investigate the orbital dynamics and histories of satellite galaxies around Milky Way (MW)-mass host galaxies using the FIRE-2 cosmological simulations, which, as prev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7230251ef0256d9399eb3a6c125a25b2
http://arxiv.org/abs/2208.05977
http://arxiv.org/abs/2208.05977
Autor:
Jeremy Bailin, Jenna Samuel, Sierra Chapman, Philip F. Hopkins, Andrew Wetzel, Claude André Faucher-Giguère, Michael Boylan-Kolchin, Erik Tollerud
Publikováno v:
Monthly Notices of the Royal Astronomical Society, vol 504, iss 1
We examine the prevalence, longevity, and causes of planes of satellite dwarf galaxies, as observed in the Local Group. We use 14 Milky Way/Andromeda-(MW/M31) mass host galaxies from the FIRE-2 simulations. We select the 14 most massive satellites by
Autor:
Jay Strader, Alexandra L. Gregory, Lewis Hill, Denis Erkal, David J. Sand, Michelle L. M. Collins, Erik Tollerud, Maxime Delorme, Beth Willman
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 496:1092-1104
We present new chemo--kinematics of the Hercules dwarf galaxy based on Keck II-- DEIMOS spectroscopy. Our 21 confirmed members have a systemic velocity of $v_{\mathrm{Herc}}=46.4\pm1.3$ kms$^{-1}$ and a velocity dispersion $\sigma_{v,\mathrm{Herc}}=4
Autor:
Robel Geda, Steven M. Crawford, Lucas Hunt, Matthew Bershady, Erik Tollerud, Solohery Randriamampandry
PetroFit is an open-source Python package, based on Astropy and Photutils, that can calculate Petrosian profiles and fit galaxy images. It offers end-to-end tools for making accurate photometric measurements, estimating morphological properties, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beb960f73af9d6b9b50775d9158151ee