Results 121 to 130 of about 11,545 (216)

Machine Learning Techniques to Distinguish Giant Stars from Dwarf Stars Using Only Photometry—Pushing Redward

The Astronomical Journal
We present our photometric method, which combines Subaru/Hyper Suprime-Cam N B 515, g -band, and i- band filters to distinguish giant stars in Local Group galaxies from Milky Way dwarf contamination.
Keyi Ding, Carrie Filion, Rosemary F.G. Wyse, Evan N. Kirby, Itsuki Ogami, Masashi Chiba, Yutaka Komiyama, László Dobos, Alexander S. Szalay   +8 more
doaj   +1 more source

Subaru Telescope -History, active/adaptive optics, instruments, and scientific achievements. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2021
Iye M.
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Emission sparks around M 81 and in some dSph galaxies

, 2011
We use H-alpha images of three clumps of young stars situated between M81 and NGC3077 to estimate their star formation rate. Radial velocities of the clumps measured by us, as well as the velocity of HII-region in the dSph galaxy KDG61 are compatible ...
Afanasiev, Alonso-García, Appleton, Bell, Boyce, Brinks, Chiboucas, Chynoweth, Dalcanton, Davidge, de Mello, Dolphin, Durrell, Elena Kaisina, Falco, Freedman, Gallagher, Huchtmeier, Hunter, Hunter, Igor Karachentsev, James, Johnson, Kaisin, Kaisin, Kaisin, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Kennicutt, Kennicutt, Lidia Makarova, Makarova, Makarova, Moiseev, Oke, Rots, Serafim Kaisin, Sharina, Thilker, Yun   +41 more
core   +1 more source

Dark matter interpretation of the Fermi-LAT observations toward the outer halo of M31. [PDF]

Phys Rev D, 2021
Karwin CM, Murgia S, Moskalenko IV, Fillingham SP, Burns AK, Fieg M.   +5 more
europepmc   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

On the stellar content of the Carina dwarf spheroidal galaxy

, 2010
Accepted on PASP, 12 pages, 6 ...
Bono, Guillaume, Stetson, P.B., Walker, A.R., Monelli, M., Fabrizio, M., Pietrinferni, A., Brocato, E., Buonanno, R., Caputo, F., Cassisi, S., Castellani, M., Cignoni, M., Corsi, C.E., Dall'Ora, M., Degl'Innocenti, S., François, P., Ferraro, I., Iannicola, G., Nonino, M., Moroni, P.G.P., Pulone, L., Smith, H.A., Thévenin, F.   +22 more
openaire   +5 more sources

The Extended Stellar Distribution in the Outskirts of the Ursa Minor Dwarf Spheroidal Galaxy

The Astrophysical Journal Letters
We discover an extended distribution of main-sequence (MS) stars along the minor axis of the Ursa Minor (UMi) dwarf spheroidal galaxy (dSph). This study is enabled by deep, wide Subaru/Hyper Suprime-Cam data, reaching photometric uncertainties below 0.1 ...
Kyosuke S. Sato, Sakurako Okamoto, Masafumi Yagi, Yutaka Komiyama, Nobuo Arimoto, Rosemary F.G. Wyse, Evan N. Kirby, Masashi Chiba, Itsuki Ogami, Mikito Tanaka   +9 more
doaj   +1 more source

A Census of Dwarf Galaxy Satellites around LMC-mass Galaxy NGC 2403

The Astrophysical Journal
We present the first comprehensive census of the satellite population around a Large Magellanic Cloud stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions and Stellar Halos (MADCASH) survey. We have surveyed NGC 2403 ( D = 3.0 Mpc) with
Jeffrey L. Carlin, David J. Sand, Burçin Mutlu-Pakdil, Denija Crnojević, Amandine Doliva-Dolinsky, Christopher T. Garling, Annika H. G. Peter, Jean P. Brodie, Duncan A. Forbes, Jonathan R. Hargis, Aaron J. Romanowsky, Kristine Spekkens, Jay Strader, Beth Willman   +13 more
doaj   +1 more source

Is Sextans dwarf galaxy in a scalar field dark matter halo?

, 2014
The Bose-Einstein condensate/scalar field dark matter model, considers that the dark matter is composed by spinless-ultra-light particles which can be described by a scalar field.
Lora, V., Magana, Juan
core   +1 more source