Results 131 to 140 of about 7,707 (224)

HST Proper Motion of Andromeda III. Another Satellite Coorbiting the M31 Satellite Plane

open access: yesThe Astrophysical Journal
We measure the absolute proper motion of Andromeda III (And III) using Advanced Camera for Surveys/Wide Field Channel and WFPC2 exposures spanning an unprecedented 22 yr time baseline.
Dana I. Casetti-Dinescu   +7 more
doaj   +1 more source

Bar-driven Gas Dynamics of M31

open access: yesThe Astrophysical Journal
The large-scale gaseous shocks in the bulge of M31 can be naturally explained by a rotating stellar bar. We use gas dynamical models to provide an independent measurement of the bar pattern speed in M31.
Zi-Xuan Feng   +7 more
doaj   +1 more source

First Associated Neutrino Search for a Failed Supernova Candidate with Super-Kamiokande

open access: yesThe Astrophysical Journal Letters
In 2024, a failed supernova (SN) candidate, M31-2014-DS1, was reported in the Andromeda galaxy (M31), located at a distance of approximately 770 kpc. In this Letter, we search for neutrinos from this failed SN using data from Super-Kamiokande (SK). Based
F. Nakanishi   +246 more
doaj   +1 more source

Search for microlensing events towards M31 galaxy

open access: yes, 2001
M31, the prominent galaxy of the Local Group, is located at a distance of about 700 kpc. Due to its convenient orientation, it is an alluring target for gravitational microlensing to search for massive astrophysical compact halo objects (MACHOs), in both
Joshi, Yogesh C.   +3 more
core   +1 more source

Dark matter fraction derived from the M31 rotation curve

open access: yes
International audienceMass estimates of a spiral galaxy derived from its rotation curve must account for the galaxy's past accretion history. There are several lines of evidence indicating that M31 experienced a major merger 2 to 3 Gyr ago. Here, we have
G. A. Mamon   +17 more
core   +1 more source

The Progenitor Systems of Classical Novae in M31. [PDF]

open access: yesAstrophys J
Abelson CS   +6 more
europepmc   +1 more source

Quadrant swapping technique for partial shaded solar photovoltaic system. [PDF]

open access: yesSci Rep
Thangaraj H   +4 more
europepmc   +1 more source

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