Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Adrienne M. Cool"'
Publikováno v:
Physical Review Special Topics. Physics Education Research, Vol 10, Iss 2, p 020103 (2014)
When considering the variety of questions that can be used to measure students’ learning, instructors may choose to use multiple-choice questions, which are easier to score than responses to open-ended questions. However, by design, analyses of mul
Externí odkaz:
https://doaj.org/article/ca798ae2fa5648508dba63700d2e6001
Autor:
Vlad Tudor, Jay Strader, Yue Zhao, James Miller-Jones, Adrienne M. Cool, Jay Anderson, Haldan N. Cohn, Phyllis M. Lugger, Craig O. Heinke
We report the results of a deep search for faint Chandra X-ray sources, radio sources, and optical counterparts in the nearby, core-collapsed globular cluster, NGC 6752. We combined new and archival Chandra imaging to detect 51 X-ray sources (12 of w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dcf5c8b64ae7454faec01ef3fb061a7
http://arxiv.org/abs/2111.00357
http://arxiv.org/abs/2111.00357
Publikováno v:
Vol. 53, Issue 2. 53
Autor:
Haldan N. Cohn, Phyllis M. Lugger, Sean M. Couch, Jay Anderson, Adrienne M. Cool, Maureen van den Berg, Slavko Bogdanov, Craig O. Heinke, Jonathan E. Grindlay
Publikováno v:
The Astrophysical Journal. 930:96
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 483:4560-4577
We report a $30~\mathrm{ks}$ $Chandra$ ACIS-S survey of the globular cluster M3. Sixteen X-ray sources were detected within the half-light radius ($2.3'$) with $L_X \gtrsim 2.3 \times 10^{31}~\mathrm{erg~s^{-1}}$. We used $Hubble~Space~Telescope$ WFC
Autor:
Adrienne M. Cool, F. D'Antona, Giampaolo Piotto, Alvio Renzini, Jonathan Anderson, Ata Sarajedini, L. R. Bedin, Thomas M. Brown, Enrico Vesperini, M. Tailo, E. P. Lagioia, Maurizio Salaris, Antonino Milone, G. Cordoni, R. P. van der Marel, Mattia Libralato, Domenico Nardiello, Jongsuk Hong, Andrea Bellini, A. F. Marino
Publikováno v:
Monthly Notices of the Royal Astronomical Society
A number of scenarios for the formation of multiple populations in globular clusters (GCs) predict that second generation (2G) stars form in a compact and dense subsystem embedded in a more extended first-generation (1G) system. If these scenarios ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2df9a31712cf99419355cf8d8a7abaa
http://hdl.handle.net/11577/3350221
http://hdl.handle.net/11577/3350221
Autor:
Simon Henleywillis, Craig O. Heinke, Daryl Haggard, Paul J. Callanan, Adrienne M. Cool, Yue Zhao
We identify 233 X-ray sources, of which 95 are new, in a 222 ks exposure of Omega Centauri with the Chandra X-ray Observatory's ACIS-I detector. The limiting unabsorbed flux in the core is $f_x$ (0.5$-$6.0 keV) $\simeq$ 3 $\times$ 10$^{-16}$ erg s$^{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd3bf5848781a3057a225d3f7f026a84
Autor:
Thomas M. Brown, Santi Cassisi, V. Granata, Jonathan Anderson, Domenico Nardiello, Giampaolo Piotto, Ata Sarajedini, R. P. van der Marel, Sebastian L. Hidalgo, Sergio Ortolani, Ivan R. King, Luigi R. Bedin, Adrienne M. Cool, Antonino Milone, Andrea Bellini, Antonio Aparicio, Mario Soto
The Hubble Space Telescope (HST) UV Legacy Survey of Galactic Globular Clusters (GO-13297) has been specifically designed to complement the existing F606W and F814W observations of the Advanced Camera for Surveys (ACS) Globular Cluster Survey (GO-107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db8d82ca3f9db18e0a1b8fb8b0c7d186
http://hdl.handle.net/20.500.12386/30159
http://hdl.handle.net/20.500.12386/30159
Autor:
J. E. Grindlay, Phyllis M. Lugger, Jonathan Anderson, Peter D. Edmonds, Rudy Wijnands, L. E. Rivera Sandoval, Natalia Ivanova, Adrienne M. Cool, M. van den Berg, Craig O. Heinke, Haldan N. Cohn
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 475(4), 4841-4867. Oxford University Press
We present 22 new (+3 confirmed) cataclysmic variables (CVs) in the non core-collapsed globular cluster 47 Tucanae (47 Tuc). The total number of CVs in the cluster is now 43, the largest sample in any globular cluster so far. For the identifications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cac12606a6f25e97581f669bcb02f0fc
Autor:
Jay Anderson, Haldan N. Cohn, Phyllis M. Lugger, Adrienne M. Cool, L. M. Forestell, Slavko Bogdanov, G. R. Sivakoff, Craig O. Heinke
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 441:757-768
We combine new and archival Chandra observations of the globular cluster NGC 6752 to create a deeper X-ray source list, and study the faint radio millisecond pulsars (MSPs) of this cluster. We detect four of the five MSPs in NGC 6752, and present evi