Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Grillmair, Carl. J."'
Autor:
Grillmair, Carl J.
Using photometry and proper motions from Pan-STARRS, DECaLS, and Gaia DR3, we detect a ~35 to 70 degree-long trailing stellar debris stream associated with the globular cluster NGC 288. We also detect a broad, ~40 to 80 degree-long leading tail that
Externí odkaz:
http://arxiv.org/abs/2409.17361
Autor:
Van Dyk, Schuyler D., Szalai, Tamas, Cutri, Roc M., Kirkpatrick, J. Davy, Grillmair, Carl J., Fajardo-Acosta, Sergio B., Masiero, Joseph R., Mainzer, Amy K., Gelino, Christopher R., Vinko, Jozsef, Joo, Andras Peter, Pal, Andras, Konyves-Toth, Reka, Kriskovics, Levente, Szakats, Robert, Vida, Krisztian, Zheng, WeiKang, Brink, Thomas G., Filippenko, Alexei V.
The reactivated Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE-R) serendipitously caught the Type II supernova SN 2023ixf in Messier 101 on the rise, starting day 3.6 through day 10.9, and on the late-time decline from days 211 throug
Externí odkaz:
http://arxiv.org/abs/2406.18005
Autor:
Fajardo-Acosta, Sergio B., Faisst, Andreas, Grillmair, Carl J., Chary, Ranga-Ram, Paladini, Roberta, Rusholme, Ben, Stickley, Nathaniel
We analyze stellar proper motions in the COSMOS field to assess the presence of bulk motions. At bright magnitudes (G-band 18.5--20.76 AB), we use the proper motions of 1,010 stars in the Gaia DR2 catalog. At the faint end, we computed proper motions
Externí odkaz:
http://arxiv.org/abs/2203.05658
Autor:
Grillmair, Carl J.
Using photometry and proper motions from Gaia Early Data Release 3, we detect a 45 degree-long trailing stellar debris stream associated with the old, metal-poor globular cluster NGC 7089. With a width on the order of 100 pc, the extended stream appe
Externí odkaz:
http://arxiv.org/abs/2203.04425
M54 is a prototype of a globular cluster embedded in a dark matter halo. Gaia EDR3 photometry and proper motions separate the old, metal-poor stars from the more metal rich and younger dwarf galaxy stars. The metal poor stars dominate the inner 50 pc
Externí odkaz:
http://arxiv.org/abs/2203.01365
Autor:
Mendelsohn, Eric J., Newberg, Heidi Jo, Shelton, Siddhartha, Widrow, Lawrence M., Thompson, Jeffery M., Grillmair, Carl J.
We fit the mass and radial profile of the Orphan-Chenab Stream's (OCS) dwarf galaxy progenitor by using turnoff stars in the Sloan Digital Sky Survey (SDSS) and the Dark Energy Camera (DEC) to constrain N-body simulations of the OCS progenitor fallin
Externí odkaz:
http://arxiv.org/abs/2201.03637
Autor:
Krick, Jessica E., Lowrance, Patrick J., Carey, Sean, Surace, Jason, Grillmair, Carl J., Laine, Seppo, Van Dyk, Schuyler D., Ingalls, James G., Ashby, Matthew L. N., Willner, S. P.
Publikováno v:
2021 JATIS...7c8006K
We investigate differences in Spitzer/IRAC 3.6 and 4.5micron photometry that depend on observing strategy. Using archival calibration data we perform an in-depth examination of the measured flux densities ("fluxes") of ten calibration stars, observed
Externí odkaz:
http://arxiv.org/abs/2111.01307
The proper motions of stars in the outskirts of globular clusters are used to estimate cluster velocity dispersion profiles as far as possible within their tidal radii. We use individual color-magnitude diagrams to select high probability cluster sta
Externí odkaz:
http://arxiv.org/abs/2106.00751
Autor:
Grillmair, Carl J.
Using photometry and proper motions from Gaia Data Release 2, we detect a 50 degree-long stream of about 70 stars extending westward from the halo globular cluster M5. Based on the similarities in distance, proper motions, inferred color-magnitude di
Externí odkaz:
http://arxiv.org/abs/1909.05927
Autor:
Li, Ting S., Kaplinghat, Manoj, Bechtol, Keith, Bolton, Adam S., Bovy, Jo, Carleton, Timothy, Chang, Chihway, Drlica-Wagner, Alex, Erkal, Denis, Geha, Marla, Greco, Johnny P., Grillmair, Carl J., Kim, Stacy Y., Laporte, Chervin F. P., Lewis, Geraint F., Makler, Martin, Mao, Yao-Yuan, Marshall, Jennifer L., McConnachie, Alan W., Necib, Lina, Nierenberg, A. M., Nord, Brian, Pace, Andrew B., Pawlowski, Marcel S., Peter, Annika H. G., Sanderson, Robyn E., Thomas, Guillaume F., Tollerud, Erik, Vegetti, Simona, Walker, Matthew G.
We discuss how astrophysical observations with the Maunakea Spectroscopic Explorer (MSE), a high-multiplexity (about 4300 fibers), wide field-of-view (1.5 square degree), large telescope aperture (11.25 m) facility, can probe the particle nature of d
Externí odkaz:
http://arxiv.org/abs/1903.03155