Results 31 to 40 of about 69,394 (286)

Detecting High-energy Neutrino Minibursts from Local Supernovae with Multiple Neutrino Observatories

open access: yesThe Astrophysical Journal Letters, 2023
Growing evidence from multiwavelength observations of extragalactic supernovae (SNe) has established the presence of dense circumstellar material in Type II SNe.
Ali Kheirandish, Kohta Murase
doaj   +1 more source

An Out‐of‐Plane CO (J= 2–1) Survey of the Milky Way. II. Physical Conditions of Molecular Gas [PDF]

open access: yesThe Astrophysical Journal, 1997
Physical conditions of molecular gas in the first quadrant of the Galaxy are examined through comparison of the CO J = 2-1 data of the Tokyo-Nobeyama Radio Observatory survey with the CO J = 1-0 data of the Columbia survey. A gradient of the CO J = 2-1/J = 1-0 intensity ratio (≡ R2-1/1-0) with Galactocentric distance is reported.
Seiichi Sakamoto   +4 more
openaire   +1 more source

Implications of hydrodynamical simulations for the interpretation of direct dark matter searches

open access: yes, 2017
In recent years, realistic hydrodynamical simulations of galaxies like the Milky Way have become available, enabling a reliable estimate of the dark matter density and velocity distribution in the Solar neighborhood.
Bertone, Gianfranco, Bozorgnia, Nassim
core   +1 more source

Baryon Physics and the Missing Satellites Problem

open access: yesOpen Astronomy, 2015
In the present paper, we combine the model of Del Popolo (2009) with the models dealing with tidal stripping, tidal heating, and photo-heating to study how baryon physics can solve the missing satellite problem (MSP) and the too-big-to-fail (TBTF ...
Del Popolo A.
doaj   +1 more source

The turbulent formation of stars

open access: yes, 2018
How stars are born from clouds of gas is a rich physics problem whose solution will inform our understanding of not just stars but also planets, galaxies, and the universe itself. Star formation is stupendously inefficient. Take the Milky Way. Our galaxy
Federrath, Christoph
core   +1 more source

The Milky Way’s Rowdy Neighbors: The Effects of the Large Magellanic Cloud and Sagittarius Dwarf on the Milky Way Disk

open access: yesThe Astrophysical Journal
The Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea   +2 more
doaj   +1 more source

Constraining Compact Object Formation with 2M0521

open access: yes, 2019
We show that the recently discovered binary 2M05215658+4359220 (2M0521), comprised of a giant star (GS) orbiting a suspected black hole (BH) in a ~80 day orbit, may be instrumental in shedding light on uncertain BH-formation physics and can be a test ...
Andrews, Jeff J.   +2 more
core   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

open access: yesFEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel   +8 more
wiley   +1 more source

SF-R You Sure? The Conflicting Role of Star Formation Rates in Constraining the Evolution of Milky Way Analogs in Cosmological Simulations

open access: yesThe Astrophysical Journal
Milky Way analogs (MWAs) have long been studied by astronomers to place our Galaxy within an extragalactic context. With the power of cosmological simulations, we are now able to not only characterize MWAs today, but also watch as they evolve through ...
Alicia M. Savelli   +4 more
doaj   +1 more source

GALLIFRAY—A Geometric Modeling and Parameter Estimation Framework for Black Hole Images Using Bayesian Techniques

open access: yesThe Astrophysical Journal, 2023
Recent observations of the galactic centers of M87 and the Milky Way with the Event Horizon Telescope have ushered in a new era of black-hole-based tests of fundamental physics using very long baseline interferometry (VLBI).
Saurabh, Sourabh Nampalliwar
doaj   +1 more source

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