Results 111 to 120 of about 10,594 (212)

The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo

open access: yesThe Astronomical Journal
Halo star clusters serve as vital tracers for the formation and evolution of the Andromeda galaxy. In this work, we present physical parameters for 29 M31 halo star clusters, derived from a combination of spectroscopic and photometric data.
Hongrui Gu   +20 more
doaj   +1 more source

Beyond the Local Group. I. Cosmic Filaments Govern the Spatial Alignments of Galaxy Pairs

open access: yesThe Astrophysical Journal
Using a large observational sample from the Sloan Digital Sky Survey, we investigate the spatial alignment between galaxy pairs and their local cosmic filaments. Focusing on pairs with stellar masses and separations comparable to the Milky Way–Andromeda (
Peng Wang
doaj   +1 more source

Rotational Kinematics in the Globular Cluster System of M31: Insights from Bayesian Inference

open access: yesThe Open Journal of Astrophysics
As ancient stellar systems, globular clusters (GCs) offer valuable insights into the dynamical histories of large galaxies. Previous studies of GC populations in the inner and outer regions of the Andromeda Galaxy (M31) have revealed intriguing ...
Yuan (Cher) Li   +3 more
doaj   +1 more source

Nature or Nurture: LMC-like Dust in the Solar Metallicity Galaxy M31

open access: yesThe Astrophysical Journal
Using the Hubble Space Telescope/Space Telescope Imaging Spectrograph, ultraviolet (UV) extinction curves have been measured in M31 along 13 new sight lines, increasing the M31 sample to 17.
Geoffrey C. Clayton   +8 more
doaj   +1 more source

Catching the Wave: Detecting Strain-Specific SARS-CoV-2 Peptides in Clinical Samples Collected during Infection Waves from Diverse Geographical Locations. [PDF]

open access: yesViruses, 2022
Mehta S   +9 more
europepmc   +1 more source

Searching for Short-period Variables in M31: Method and Catalogs

open access: yesThe Astrophysical Journal Supplement Series
Utilizing high-cadence and continuous g - and r -band data over three nights acquired from the 3.6 m Canada–France–Hawaii Telescope, aiming to find short-duration microlensing events, we conduct a systematic search for variables, transients, and ...
Hongrui Gu   +8 more
doaj   +1 more source

Globular Clusters In The Andromeda Galaxy

open access: yes, 2001
Chapters 2, 3 and 4 were published before the thesis was submitted. Chapter 5 was published as two papers, after the thesis was submitted.
openaire   +1 more source

Discovery of a Weak CN Spectral Absorption Feature in Red Supergiant Stars in the Andromeda (M31) and Triangulum (M33) Galaxies

open access: yesThe Astrophysical Journal
Using Keck DEIMOS spectra of stars in the Andromeda (M31) and Triangulum (M33) galaxies, selected from the large multiband (near-ultraviolet, visible light, and near-infrared) Hubble Space Telescope surveys PHAT and PHATTER, respectively, we have ...
Puragra Guhathakurta   +16 more
doaj   +1 more source

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