Zobrazeno 1 - 10
of 118
pro vyhledávání: '"A. Katherina Vivas"'
Autor:
Evan Butler, Andrea Kunder, Zdenek Prudil, Kevin R. Covey, Macy Ball, Carlos Campos, Kaylen Gollnick, Julio Olivares Carvajal, Joanne Hughes, Kathryn Devine, Christian I. Johnson, A. Katherina Vivas, R. Michael Rich, Meridith Joyce, Iulia T. Simion, Tommaso Marchetti, Andreas J. Koch-Hansen, William I. Clarkson, Rebekah Kuss
Publikováno v:
The Astrophysical Journal Letters, Vol 963, Iss 1, p L33 (2024)
Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster wi
Externí odkaz:
https://doaj.org/article/79909a585b8244678aad812edb9bd4b0
Autor:
Kyoung-Soo Lee, Eric Gawiser, Changbom Park, Yujin Yang, Francisco Valdes, Dustin Lang, Vandana Ramakrishnan, Byeongha Moon, Nicole Firestone, Stephen Appleby, Maria Celeste Artale, Moira Andrews, Franz Bauer, Barbara Benda, Adam Broussard, Yi-Kuan Chiang, Robin Ciardullo, Arjun Dey, Rameen Farooq, Caryl Gronwall, Lucia Guaita, Yun Huang, Ho Seong Hwang, Sang Hyeok Im, Woong-Seob Jeong, Shreya Karthikeyan, Hwihyun Kim, Seongjae Kim, Ankit Kumar, Gautam R. Nagaraj, Julie Nantais, Nelson Padilla, Jaehong Park, Alexandra Pope, Roxana Popescu, David Schlegel, Eunsuk Seo, Akriti Singh, Hyunmi Song, Paulina Troncoso, A. Katherina Vivas, Ann Zabludoff, Alfredo Zenteno
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 36 (2024)
We describe the survey design and science goals for One-hundred-deg ^2 DECam Imaging in Narrowbands (ODIN), a NOIRLab survey using the Dark Energy Camera (DECam) to obtain deep (AB ∼ 25.7) narrowband images over an unprecedented area of sky. The th
Externí odkaz:
https://doaj.org/article/13cc97617f9f4d83a4ce42e6ad6ccd9c
Publikováno v:
The Astronomical Journal, Vol 167, Iss 2, p 57 (2024)
The possible existence of stellar halos in low-mass galaxies is being intensely discussed nowadays after some recent discoveries of stars located in the outskirts of dwarf galaxies of the Local Group. RR Lyrae stars can be used to identify the extent
Externí odkaz:
https://doaj.org/article/8cf35604c0574ba896e2007c7a2871a9
Autor:
Andrea Kunder, Zdenek Prudil, Kevin R. Covey, Joanne Hughes, Meridith Joyce, Iulia T. Simion, Rebekah Kuss, Carlos Campos, Christian I. Johnson, Catherine A. Pilachowski, Kristen A. Larson, Andreas J. Koch-Hansen, Tommaso Marchetti, Michael R. Rich, Evan Butler, William I. Clarkson, Michael Rivet, Kathryn Devine, A. Katherina Vivas, Gabriel I. Perren, Mario Soto, Erika Silva
Publikováno v:
The Astronomical Journal, Vol 167, Iss 1, p 21 (2023)
The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters. In this way, an indication of the fraction of metal-poor bulge stars that originated from g
Externí odkaz:
https://doaj.org/article/bd7576781348448f979e8e46a6dac052
Autor:
Justin A. Kader, Catherine A. Pilachowski, Christian I. Johnson, R. Michael Rich, Michael D. Young, Iulia T. Simion, William I. Clarkson, Scott Michael, Andrea Kunder, Anna Katherina Vivas, Andreas J. Koch-Hansen, Tommaso Marchetti
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 126 (2023)
We present wide-field, high resolution maps of the color excess for 14 globular clusters toward the Southern Galactic bulge. The maps were derived using Gaia EDR3 astrometry and stellar photometry from the Blanco DECam Bulge Survey, which is a deep,
Externí odkaz:
https://doaj.org/article/0ce71fe3216b464295b70f15dc46212a
Autor:
Gustavo E Medina, Camilla J Hansen, Ricardo R Muñoz, Eva K Grebel, A Katherina Vivas, Jeffrey L Carlin, Clara E Martínez-Vázquez
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:5689-5722
We report the spectroscopic analysis of 20 halo ab-type RR Lyrae stars with heliocentric distances between 15 and 165 kpc, conducted using medium-resolution spectra from the Magellan Inamori Kyocera Echelle (MIKE) spectrograph. We obtain the systemic
Autor:
Cameron P M Bell, Maria-Rosa L Cioni, Angus H Wright, David L Nidever, I-Da Chiang, Samyaday Choudhury, Martin A T Groenewegen, Clara M Pennock, Yumi Choi, Richard de Grijs, Valentin D Ivanov, Pol Massana, Ambra Nanni, Noelia E D Noël, Knut Olsen, Jacco Th van Loon, A Katherina Vivas, Dennis Zaritsky
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:824-840
We present a map of the total intrinsic reddening across ~90 deg$^{2}$ of the Large Magellanic Cloud (LMC) derived using optical (ugriz) and near-infrared (IR; YJKs) spectral energy distributions (SEDs) of background galaxies. The reddening map is cr
Autor:
Melissa L Graham, Robert A Knop, Thomas D Kennedy, Peter E Nugent, Eric Bellm, Márcio Catelan, Avi Patel, Hayden Smotherman, Monika Soraisam, Steven Stetzler, Lauren N Aldoroty, Autumn Awbrey, Karina Baeza-Villagra, Pedro H Bernardinelli, Federica Bianco, Dillon Brout, Riley Clarke, William I Clarkson, Thomas Collett, James R A Davenport, Shenming Fu, John E Gizis, Ari Heinze, Lei Hu, Saurabh W Jha, Mario Jurić, J Bryce Kalmbach, Alex Kim, Chien-Hsiu Lee, Chris Lidman, Mark Magee, Clara E Martínez-Vázquez, Thomas Matheson, Gautham Narayan, Antonella Palmese, Christopher A Phillips, Markus Rabus, Armin Rest, Nicolás Rodríguez-Segovia, Rachel Street, A Katherina Vivas, Lifan Wang, Nicholas Wolf, Jiawen Yang
This paper presents a new optical imaging survey of four deep drilling fields (DDFs), two Galactic and two extragalactic, with the Dark Energy Camera (DECam) on the 4 meter Blanco telescope at the Cerro Tololo Inter-American Observatory (CTIO). Durin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77612b91d367aed9eef4c76aa0d6ac02
http://arxiv.org/abs/2211.09202
http://arxiv.org/abs/2211.09202
Autor:
Scott S. Sheppard, David J. Tholen, Petr Pokorný, Marco Micheli, Ian Dell’Antonio, Shenming Fu, Chadwick A. Trujillo, Rachael Beaton, Scott Carlsten, Alex Drlica-Wagner, Clara Martínez-Vázquez, Sidney Mau, Toni Santana-Ros, Luidhy Santana-Silva, Cristóbal Sifón, Sunil Simha, Audrey Thirouin, David Trilling, A. Katherina Vivas, Alfredo Zenteno
Publikováno v:
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
Universidad de Alicante (UA)
We are conducting a survey using twilight time on the Dark Energy Camera with the Blanco 4 m telescope in Chile to look for objects interior to Earth’s and Venus’ orbits. To date we have discovered two rare Atira/Apohele asteroids, 2021 LJ4 and 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7db3f35081c889914f5a58dddd12d5f
https://hdl.handle.net/10045/128292
https://hdl.handle.net/10045/128292
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