Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Bailey III, John"'
Autor:
Males, Jared R., Close, Laird M., Haffert, Sebastiaan Y., Kautz, Maggie Y., Kueny, Jay, Long, Joseph D., McEwen, Eden, Swimmer, Noah, Bailey III, John I., Foster, Warren, Mazin, Benjamin A., Pearce, Logan, Liberman, Joshua, Twitchell, Katie, Weinberger, Alycia J., Guyon, Olivier, Hedglen, Alexander D., McLeod, Avalon, Roberts, Roz, Van Gorkom, Kyle, Li, Jialin, Doty, Isabella, Gasho, Victor
MagAO-X is the coronagraphic extreme adaptive optics system for the 6.5 m Magellan Clay Telescope. We report the results of commissioning the first phase of MagAO-X. Components now available for routine observations include: the >2 kHz high-order con
Externí odkaz:
http://arxiv.org/abs/2407.13007
Autor:
Cristofari, Paul I., Dupree, Andrea K., Milone, Antonino P., Walker, Matthew G., Mateo, Mario, Dotter, Aaron, Bailey III, John I.
We present an analysis of high-resolution optical spectra recorded for 30 stars of the split extended main-sequence turnoff (eMSTO) of the young ($\sim$ 40 Myr) Small Magellanic Cloud (SMC) globular cluster NGC 330. Spectra were obtained with the M2F
Externí odkaz:
http://arxiv.org/abs/2406.10413
Autor:
Garcia, Jonathan Cabrera, Sakari, Charli M., Roederer, Ian U., Evans, Donavon W., Silva, Pedro, Mateo, Mario, Song, Ying-Yi, Kremin, Anthony, Bailey III, John I., Walker, Matthew G.
M15 is a globular cluster with a known spread in neutron-capture elements. This paper presents abundances of neutron-capture elements for 62 stars in M15. Spectra were obtained with the Michigan/Magellan Fiber System (M2FS) spectrograph, covering a w
Externí odkaz:
http://arxiv.org/abs/2403.00063
Autor:
Walker, Matthew G., Caldwell, Nelson, Mateo, Mario, Olszewski, Edward W., Pace, Andrew B., Bailey III, John I., Koposov, Sergey E., Roederer, Ian U.
Publikováno v:
The Astrophysical Journal Supplement Series, 2023, Volume 268, Issue 1, id.19, 40 pp
We present spectroscopic data for 16369 stellar targets within and/or toward 38 dwarf spheroidal galaxies and faint star clusters within the Milky Way halo environment. All spectra come from observations with the multi-object, fiber-fed echelle spect
Externí odkaz:
http://arxiv.org/abs/2312.12738
Autor:
Billi, Alex, Ferraro, Francesco R., Mucciarelli, Alessio, Lanzoni, Barbara, Cadelano, Mario, Monaco, Lorenzo, Mateo, Mario, Bailey III, John I., Reiter, Megan, Olszewski, Edward W.
We used high resolution spectra acquired at the Magellan Telescope to measure radial and rotational velocities of approximately 200 stars in the Galactic globular cluster NGC 3201. The surveyed sample includes Blue Stragglers Stars (BSSs) and referen
Externí odkaz:
http://arxiv.org/abs/2309.01442
Autor:
Johnson, Christian I., Caldwell, Nelson, Rich, R. Michael, Mateo, Mario, Bailey III, John I., Olszewski, Edward W., Walker, Matthew G.
NGC 5986 is a poorly studied but relatively massive Galactic globular cluster that shares several physical and morphological characteristics with "iron-complex" clusters known to exhibit significant metallicity and heavy-element dispersions. In order
Externí odkaz:
http://hdl.handle.net/10150/624431
http://arizona.openrepository.com/arizona/handle/10150/624431
http://arizona.openrepository.com/arizona/handle/10150/624431
Autor:
Pace, Andrew B., Koposov, Sergey E., Walker, Matthew G., Caldwell, Nelson, Mateo, Mario, Olszewski, Edward W., Roederer, Ian U., Bailey III, John I., Belokurov, Vasily, Kuehn, Kyler, Li, Ting S., Zucker, Daniel B.
We present Magellan/M2FS spectroscopy of four recently discovered Milky Way star clusters (Gran 3/Patchick~125, Gran 4, Garro 01, LP 866) and two newly discovered open clusters (Gaia 9, Gaia 10) at low Galactic latitudes. We measure line-of-sight vel
Externí odkaz:
http://arxiv.org/abs/2304.06904
Autor:
Swimmer, Noah, Currie, Thayne, Steiger, Sarah, Brandt, Gregory Mirek, Brandt, Timothy D., Guyon, Olivier, Kuzuhara, Masayuki, Chilcote, Jeffrey, Tobin, Taylor, Groff, Tyler D., Lozi, Julien, Bailey III, John I., Walter, Alexander B., Fruitwala, Neelay, Zobrist, Nicholas, Smith, Jennifer Pearl, Coiffard, Gregoire, Dodkins, Rupert, Davis, Kristina K., Daal, Miguel, Bumble, Bruce, Vievard, Sebastien, Skaf, Nour, Deo, Vincent, Jovanovic, Nemanja, Martinache, Frantz, Tamura, Motohide, Kasdin, N. Jeremy, Mazin, Benjamin A.
We present the direct imaging discovery of a low-mass companion to the nearby accelerating F star, HIP 5319, using SCExAO coupled with the CHARIS, VAMPIRES, and MEC instruments in addition to Keck/NIRC2 imaging. CHARIS $JHK$ (1.1-2.4 $\mu$m) spectros
Externí odkaz:
http://arxiv.org/abs/2208.00334
Autor:
Ji, Alexander P., Simon, Joshua D., Roederer, Ian U., Magg, Ekaterina, Frebel, Anna, Johnson, Christian I., Klessen, Ralf S., Magg, Mattis, Cescutti, Gabriele, Mateo, Mario, Bergemann, Maria, Bailey III, John I.
The ultra-faint dwarf galaxy Reticulum~II was enriched by a single rare and prolific r-process event. The r-process content of Reticulum~II thus provides a unique opportunity to study metal mixing in a relic first galaxy. Using multi-object high-reso
Externí odkaz:
http://arxiv.org/abs/2207.03499
Autor:
Steiger, Sarah, Bailey III, John I., Zobrist, Nicholas, Swimmer, Noah, Dodkins, Rupert, Davis, Kristina K., Mazin, Benjamin A.
We present The MKID Pipeline, a general use science data pipeline for the reduction and analysis of ultraviolet, optical and infrared (UVOIR) Microwave Kinetic Inductance Detector (MKID) data sets. This paper provides an introduction to the nature of
Externí odkaz:
http://arxiv.org/abs/2203.01406