Results 51 to 60 of about 842,086 (198)
COOL GAS IN THE MAGELLANIC STREAM [PDF]
The Astrophysical Journal, 2009 We present the first direct detection of cold atomic gas in the Magellanic Stream, through 21 cm line absorption toward a background radio source, J0119 - 6809, using the Australia Telescope Compact Array. Two absorption components were identified at heliocentric velocities 218.6 km/s and 227.0 km/s, with optical depths of tau ~ 0.02. The corresponding
Matthews, Deanna Maree. +3 more
openaire +4 more sources
Discovery of a Disrupting Open Cluster Far into the Milky Way Halo: A Recent Star Formation Event in the Leading Arm of the Magellanic Stream? [PDF]
Astrophysical Journal, 2018 We report the discovery of a young ( ), low-mass ( ), metal-poor ( ) stellar association at a heliocentric distance , placing it far into the Milky Way (MW) halo.
A. Price-Whelan +6 more
semanticscholar +1 more source
Models of Tidally Induced Gas Filaments in the Magellanic Stream [PDF]
, 2018 The Magellanic Stream and Leading Arm of H i that stretches from the Large and Small Magellanic Clouds (LMC and SMC) and over 200° of the Southern sky is thought to be formed from multiple encounters between the LMC and SMC. In this scenario, most of the
S. Pardy, E. D’Onghia, A. Fox
semanticscholar +1 more source
New Constraints on the Nature and Origin of the Leading Arm of the Magellanic Stream [PDF]
Astrophysical Journal, 2018 We present a new precision measurement of gas-phase abundances of S, O, N, Si, Fe, P, Al, Ca as well as molecular hydrogen (H2) in the Leading Arm (region II, LA II) of the Magellanic Stream (MS) toward the Seyfert galaxy NGC 3783.
P. Richter +7 more
semanticscholar +1 more source
The Large Magellanic Cloud’s ∼30 kpc Bow Shock and Its Impact on the Circumgalactic Medium
The Astrophysical Journal Letters, 2023 The interaction between the supersonic motion of the Large Magellanic Cloud (LMC) and the circumgalactic medium (CGM) is expected to result in a bow shock that leads the LMC’s gaseous disk.
David J. Setton +6 more
doaj +1 more source
Chemical Abundances in the Leading Arm of the Magellanic Stream [PDF]
, 2018 The Leading Arm (LA) of the Magellanic Stream is a vast debris field of H i clouds connecting the Milky Way and the Magellanic Clouds. It represents an example of active gas accretion onto the Galaxy.
A. Fox +11 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 This paper proposes a new method for estimating the total quantity of material in moving circumgalactic and intergalactic clouds from O vi measurements. We simulate high-velocity clouds (HVCs) with the FLASH hydrodynamic code and track the ionization and
Eric Goetz, Chen Wang, Robin L. Shelton
doaj +1 more source
Spectral Modeling of the Supersoft X-Ray Source CAL87 Based on Radiative Transfer Codes
The Astrophysical Journal, 2023 Supersoft X-ray sources (SSSs) are white dwarf (WD) binaries that radiate almost entirely below ∼1 keV. Their X-ray spectra are often complex when viewed with the X-ray grating spectrometers, where numerous emission and absorption features are ...
Masahiro Tsujimoto +4 more
doaj +1 more source
A Dynamically Distinct Stellar Population in the Leading Arm of the Sagittarius Stream
The Astrophysical Journal Letters, 2023 We present a chemical and dynamical analysis of the leading arm (LA) and trailing arm (TA) of the Sagittarius (Sgr) stream, as well as for the Sgr dwarf galaxy core (SC), using red giant branch, main-sequence, and RR Lyrae stars from large spectroscopic ...
Gwibong Kang +3 more
doaj +1 more source