Results 11 to 20 of about 4,796,996 (337)
The Poor Old Heart of the Milky Way [PDF]
Astrophysical Journal, 2022 Our Milky Way should host an ancient, metal-poor, and centrally concentrated stellar population, which reflects the star formation and enrichment in the few most massive progenitors that coalesced at high redshift to form the proto-Galaxy.
H. Rix +11 more
semanticscholar +1 more source
Motivations for a Large Self-Interacting Dark Matter Cross Section from Milky Way Satellites [PDF]
Monthly notices of the Royal Astronomical Society, 2022 We explore the properties of Milky Way subhalos in self-interacting dark matter models for moderate cross sections of 1 to 5 cm2g−1 using high-resolution zoom-in N-body simulations.
M. Silverman +4 more
semanticscholar +1 more source
THE BONES OF THE MILKY WAY [PDF]
The Astrophysical Journal, 2014 A non-annotated high-dynamic-range view of the Spitzer image in Figure 1 is available as a supplement to this paper at http://hdl.handle.net/1902.1/22050 . This paper was accepted for publication in the Astrophysical Journal on July 30, 2014. A companion web site with the original open preprint of this paper, from January of 2013, is at http ...
Goodman, Alyssa A. +10 more
openaire +13 more sources
Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with ΛCDM [PDF]
, 2020 We present an expanded sample of 75 Milky Way Cepheids with Hubble Space Telescope (HST) photometry and Gaia EDR3 parallaxes, which we use to recalibrate the extragalactic distance ladder and refine the determination of the Hubble constant.
A. Riess +6 more
semanticscholar +1 more source
Nature, 1870 YOUR correspondent, Mr. Jeremiah, after quoting the words of the Llangadock “Oracle,” adds, “meaning that the wind will blow from that quarter.” Did Mr. Jeremiah interpret the man's meaning correctly? If so it is at variance with a popular belief in Hampshire, viz., that in whichever way the Milky Way may be seen over night, the wind is sure to blow ...
+8 more sources
Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk
The Astrophysical Journal, 2023 We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence stars, which have been referred to as the Splash or Splashed Disk, selected from the Sloan Digital Sky Survey and Large Sky Area Multi-Object Fiber ...
Ayeon Lee +4 more
doaj +1 more source
The Astrophysical Journal, 2023 We have for the first time identified the early stellar disk in the Milky Way by using a combination of elemental abundances and kinematics. Using data from APOGEE DR17 and Gaia we select stars in the Mg–Mn–Al–Fe plane with elemental abundances ...
Sofia Feltzing, Diane Feuillet
doaj +1 more source
The Astrophysical Journal, 2023 We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo−disk interface in the local volume.
Deokkeun An +3 more
doaj +1 more source
Reconstructing the Last Major Merger of the Milky Way with the H3 Survey [PDF]
Astrophysical Journal, 2021 Several lines of evidence suggest that the Milky Way underwent a major merger at z ∼ 2 with the Gaia-Sausage-Enceladus (GSE) galaxy. Here we use H3 Survey data to argue that GSE entered the Galaxy on a retrograde orbit based on a population of highly ...
R. Naidu +10 more
semanticscholar +1 more source
The effect of the deforming dark matter haloes of the Milky Way and the Large Magellanic Cloud on the Orphan-Chenab stream [PDF]
, 2022 It has recently been shown that the Large Magellanic Cloud (LMC) has a substantial effect on the Milky Way’s stellar halo and stellar streams. Here, we explore how deformations of the Milky Way and LMC’s dark matter haloes affect stellar streams, and ...
Sophia Lilleengen +15 more
semanticscholar +1 more source