Results 41 to 50 of about 11,151 (256)

Discovery of 20 UV-emitting SNRs in M31 with UVIT

The Astronomical Journal, 2023
We present the first catalog of supernova remnants (SNRs) in M31 that exhibit diffuse ultraviolet (UV) emission. UV images of M31 were obtained by the Ultraviolet Imaging Telescope (UVIT) on the AstroSat satellite, and the list of SNRs was obtained from ...
Denis Leahy, Christopher Monaghan, Sujith Ranasinghe   +2 more
doaj   +1 more source

The PAndAS view of the Andromeda satellite system - I. A Bayesian search for dwarf galaxies using spatial and color-magnitude information [PDF]

, 2013
We present a generic algorithm to search for dwarf galaxies in photometric catalogs and apply it to the Pan-Andromeda Archaeological Survey (PAndAS).
Fardal, Mark A., Ferguson, Annette M. N., Ibata, Rodrigo A., Irwin, Michael J., Lewis, Geraint F., Mackey, A. Dougal, Martin, Nicolas F., McConnachie, Alan W.   +7 more
core   +1 more source

Gamma-ray image reconstruction of the Andromeda galaxy [PDF]

, 2021
Céline Armand, Francesca Calore
openalex   +3 more sources

Deep Optical Photometry of Six Fields in the Andromeda Galaxy [PDF]

, 2009
Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have obtained deep optical images reaching well below the oldest main sequence turnoff in six fields of the Andromeda Galaxy. The fields fall at four positions on the southeast minor
Brown, Thomas M., Ferguson, Henry C., Guhathakurta, Puragra, Kalirai, Jason S., Kimble, Randy A., Renzini, Alvio, Rich, R. Michael, Smith, Ed, Sweigart, Allen V., VandenBerg, Don A.   +9 more
core   +1 more source

RED SUPERGIANTS IN THE ANDROMEDA GALAXY (M31) [PDF]

The Astrophysical Journal, 2009
Red supergiants are a short-lived stage in the evolution of moderately massive stars (10-25Mo), and as such their location in the H-R diagram provides an exacting test of stellar evolutionary models. Since massive star evolution is strongly affected by the amount of mass-loss a star suffers, and since the mass-loss rates depend upon metallicity, it is ...
Massey, Philip, Silva, David R., Levesque, Emily M., Plez, Bertrand, Olsen, Knut A. G., Clayton, Geoffrey C., Meynet, Georges, Maeder, Andre   +7 more
openaire   +2 more sources

Discovery of Radio/X-ray/Optical Resolved Supernova Remnants in the Center of the Andromeda Galaxy

, 2003
We have detected a spatially resolved supernova remnant (SNR) in the center of the Andromeda Galaxy, in radio, X-ray, and optical wavelengths. These observations provide the highest spatial resolution imaging of a radio/X-ray/optical SNR in that galaxy ...
A. K. H. Kong, B. F. Williams, Braun R., d’Odorico S., J. R. Dickel, L. O. Sjouwerman, M. R. Garcia, Magnier E. A.   +7 more
core   +1 more source

Morphological transformation of dwarf galaxies in the Local Group [PDF]

, 2015
In the Local Group there are three main types of dwarf galaxies: Dwarf Irregulars, Dwarf Spheroidals, and Dwarf Ellipticals. Intermediate/transitional types are present as well.
Carraro, Giovanni
core   +1 more source

YELLOW SUPERGIANTS IN THE ANDROMEDA GALAXY (M31) [PDF]

The Astrophysical Journal, 2009
Accepted by the Astrophysical ...
Drout, Maria R., Massey, Philip, Meynet, Georges, Tokarz, Susan, Caldwell, Nelson   +4 more
openaire   +2 more sources

Integrative cross‐tissue analysis unveils complement‐immunoglobulin augmentation and dysbiosis‐related fatty acid metabolic remodeling during mammalian aging [PDF]

Imeta
Our study provides a comprehensive multi‐omics profile of aging, integrating proteomic, metabolomic, and metagenomic analyses across diverse tissues and plasma. We identified the synergistic amplification of the circulating complement system and tissue‐wide immunoglobulin accumulation as key molecular drivers of inflammaging.
Zhang F, Li R, Liu Y, Liang J, Gong Y, Xiao C, Cai J, Wang T, You Q, Zhang J, Chen H, Xiao J, Zhang Y, Yang Y, Li H, Yao J, Zhang Q, Zheng J.   +17 more
europepmc   +2 more sources

A trio of new Local Group galaxies with extreme properties

, 2008
We report on the discovery of three new dwarf galaxies in the Local Group. These galaxies are found in new CFHT/MegaPrime g,i imaging of the south-western quadrant of M31, extending our extant survey area to include the majority of the southern ...
Alan W. McConnachie, Annette M. N. Ferguson, Avon Huxor, Geraint F. Lewis, Gregory Fahlman, Harvey Richer, Irwin M., Karachentsev I. D., Lynden-Bell D., Lynden-Bell D., Mike J. Irwin, Nial R. Tanvir, Nicolas F. Martin, Rodrigo A. Ibata, Salaris M., Scott C. Chapman, Sharina M. E.   +16 more
core   +1 more source