Zobrazeno 1 - 10
of 217
pro vyhledávání: '"DEOKKEUN AN"'
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 1, p 20 (2024)
Using a grid of empirically calibrated synthetic spectra developed in our previous study, we construct an all-sky 3D extinction map from the large collection of low-resolution XP spectra in Gaia DR3. Along each line of sight, with an area ranging fro
Externí odkaz:
https://doaj.org/article/c1bd2eca9a89489bb4ee7287c2e9d3c4
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 66 (2023)
We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo−disk interface in the local volume. To exploit various photometric
Externí odkaz:
https://doaj.org/article/c58ce7d0bc714805803c5cbb01432abb
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 56 (2023)
We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence stars, which have been referred to as the Splash or Splashed Disk, selected from the Sloan Digital Sky Survey and Large Sky Area Multi-Object Fiber S
Externí odkaz:
https://doaj.org/article/8d3e909811634f119462ec17d9a5216b
Publikováno v:
ApJS, 272, 20 (2024)
Using a grid of empirically calibrated synthetic spectra developed in our previous study, we construct an all-sky 3D extinction map from the large collection of low-resolution XP spectra in Gaia DR3. Along each line of sight, with an area ranging fro
Externí odkaz:
http://arxiv.org/abs/2404.14626
We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo-disk interface in the local volume. To exploit various photometric da
Externí odkaz:
http://arxiv.org/abs/2210.07542
We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence (MS) stars, which has been referred to as the Splash or Splashed Disk, selected from Sloan Digital Sky Survey (SDSS) and Large Sky Area Multi-Object
Externí odkaz:
http://arxiv.org/abs/2210.07905
Autor:
Jang, Dajeong, An, Deokkeun, Sellgren, Kris, Ramírez, Solange V., Boogert, A. C. Adwin, Schultheis, Mathias
To study the demographics of interstellar ices in the Central Molecular Zone (CMZ) of the Milky Way, we obtain near-infrared spectra of $109$ red point sources using NASA IRTF/SpeX at Maunakea. We select the sample from near- and mid-infrared photome
Externí odkaz:
http://arxiv.org/abs/2203.16833
Autor:
An, Deokkeun, Beers, Timothy C.
We analyze the observed spatial, chemical and dynamical distributions of local metal-poor stars, based on photometrically derived metallicity and distance estimates along with proper motions from the Gaia mission. Along the Galactic prime meridian, w
Externí odkaz:
http://arxiv.org/abs/2104.09737
Autor:
Whitten, Devin D., Placco, Vinicius M., Beers, Timothy C., An, Deokkeun, Lee, Young Sun, Almeida-Fernandes, Felipe, Herpich, Fabio R., Daflon, Simone, Barbosa, Carlos E., Perottoni, Helio D., Rossi, Silvia, Tissera, Patricia B., Yoon, Jinmi, Youakim, Kris, Schoenell, William, Ribeiro, Tiago, Kanaan, Antonio
We report photometric estimates of effective temperature, $T_{\rm eff}$, metallicity, [Fe/H], carbonicity, [C/Fe], and absolute carbon abundances, $A{\rm (C)}$, for over 700,000 stars from the Southern Photometric Local Universe Survey (S-PLUS) Data
Externí odkaz:
http://arxiv.org/abs/2104.00016
We present near-infrared (IR) spectra of two planetary nebula (PN) candidates in close lines of sight toward the Galactic center (GC) using the Gemini Near-Infrared Spectrograph (GNIRS) at Gemini North. High-resolution images from radio continuum and
Externí odkaz:
http://arxiv.org/abs/2102.09806