Zobrazeno 1 - 10
of 1 580
pro vyhledávání: '"Smith, Martin P"'
Autor:
Nie, Jundan, Tian, Hao, Li, Jing, Liu, Chao, Smith, Martin C., Tang, Baitian, Carballo-Bello, Julio A., Ma, Jun, Tian, Haijun, Wang, Jiaxin, Wu, Zhenyu, Peng, Xiyan, Wang, Jiali, Zhang, Tianmeng, Zhou, Xu, Zhou, Zhimin, Zou, Hu
Whiting 1 is a faint and young globular cluster in the halo of the Milky Way, and was suggested to have originated in the Sagittarius spherical dwarf galaxy (Sgr dSph). In this paper, we use the deep DESI Legacy Imaging Surveys to explore tentative s
Externí odkaz:
http://arxiv.org/abs/2204.11064
We collect a sample of stars observed both in LAMOST and Gaia which have colors implying a temperature hotter than 7000 K. We train a machine learning algorithm on LAMOST spectroscopic data which has been tagged with stellar classifications and metal
Externí odkaz:
http://arxiv.org/abs/2102.09183
Autor:
Song, Wenlei, Xu, Cheng, Smith, Martin P., Kynicky, Jindrich, Yang, Jinkun, Liu, Taotao, Jing, Delong
Publikováno v:
In Geochimica et Cosmochimica Acta 1 December 2023 362:115-126
Although the stellar halo accounts for just ~1% of the total stellar mass of the Milky Way, the kinematics of halo stars encode valuable information about the origins and evolution of our Galaxy. It has been shown that the high transverse velocity st
Externí odkaz:
http://arxiv.org/abs/1912.12679
The Milky Way's progenitor experienced several merger events which left their imprints on the stellar halo, including the Gaia-Sausage/Enceladus. Recently, it has been proposed that this event perturbed the proto-disk and gave rise to a metal rich ([
Externí odkaz:
http://arxiv.org/abs/1912.12690
Identifying the structure of our Galaxy has always been fraught with difficulties, and while modern surveys continue to make progress building a map of the Milky Way, there is still much to understand. The arm and bar features are important drivers i
Externí odkaz:
http://arxiv.org/abs/1911.04030
Autor:
Belokurov, Vasily, Sanders, Jason L., Fattahi, Azadeh, Smith, Martin C., Deason, Alis J., Evans, N. Wyn, Grand, Robert J. J.
Using a large sample of bright nearby stars with accurate Gaia Data Release 2 astrometry and auxiliary spectroscopy we map out the properties of the principle Galactic components such as the "thin" and "thick" discs and the halo. We show that in the
Externí odkaz:
http://arxiv.org/abs/1909.04679
Autor:
Laporte, Chervin F. P., Belokurov, Vasily, Koposov, Sergey E., Smith, Martin C., Hill, Vanessa
Using Gaia DR2, we trace the Anticenter Stream (ACS) in various stellar populations across the sky and find that it is kinematically and spatially decoupled from the Monoceros Ring. Using stars from {\sc lamost} and {\sc segue}, we show that the ACS
Externí odkaz:
http://arxiv.org/abs/1907.10678
Autor:
Belokurov, Vasily, Deason, Alis J., Erkal, Denis, Koposov, Sergey E., Carballo-Bello, Julio A., Smith, Martin C, Jethwa, Prashin, Navarrete, Camila
Using RR Lyrae stars in the Gaia Data Release 2 and Pan-STARRS1 we study the properties of the Pisces Overdensity, a diffuse sub-structure in the outer halo of the Milky Way. We show that along the line of sight, Pisces appears as a broad and long pl
Externí odkaz:
http://arxiv.org/abs/1904.07909
Autor:
Kamdar, Harshil, Conroy, Charlie, Ting, Yuan-Sen, Bonaca, Ana, Smith, Martin, Brown, Anthony G. A.
It is challenging to reliably identify stars that were born together outside of actively star-forming regions and bound stellar systems. However, co-natal stars should be present throughout the Galaxy, and their demographics can shed light on the clu
Externí odkaz:
http://arxiv.org/abs/1904.02159