Zobrazeno 1 - 10
of 19 955
pro vyhledávání: '"John, I"'
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:
Smith, Jennifer Pearl, Bailey, John I., III., Cuda, Aled, Zobrist, Nicholas, Mazin, Benjamin A.
Building large, cryogenic MKID arrays requires processing highly-multiplexed, wideband readout signals in real time; a task that has previously required large, heavy, and power-intensive custom electronics. In this work, we present the third-generati
Externí odkaz:
http://arxiv.org/abs/2406.09764
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:
David Jonathan Wasilko, Brian S. Gerstenberger, Kathleen A. Farley, Wei Li, Jennifer Alley, Mark E. Schnute, Ray J. Unwalla, Jorge Victorino, Kimberly K. Crouse, Ru Ding, Parag V. Sahasrabudhe, Fabien Vincent, Richard K. Frisbie, Alpay Dermenci, Andrew Flick, Chulho Choi, Gary Chinigo, James J. Mousseau, John I. Trujillo, Philippe Nuhant, Prolay Mondal, Vincent Lombardo, Daniel Lamb, Barbara J. Hogan, Gurdeep Singh Minhas, Elena Segala, Christine Oswald, Ian W. Windsor, Seungil Han, Mathieu Rappas, Robert M. Cooke, Matthew F. Calabrese, Gabriel Berstein, Atli Thorarensen, Huixian Wu
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract The CC chemokine receptor 6 (CCR6) is a potential target for chronic inflammatory diseases. Previously, we reported an active CCR6 structure in complex with its cognate chemokine CCL20, revealing the molecular basis of CCR6 activation. Here,
Externí odkaz:
https://doaj.org/article/91af6bd491994266b492f68b0994ea6e