Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Anand, G S"'
Autor:
Scolnic, D., Riess, A. G., Wu, J., Li, S., Anand, G. S., Beaton, R., Casertano, S., Anderson, R., Dhawan, S., Ke, X.
The Tip of the Red Giant Branch (TRGB) provides a luminous standard candle for constructing distance ladders to measure the Hubble constant. In practice its measurements via edge-detection response (EDR) are complicated by the apparent fuzziness of t
Externí odkaz:
http://arxiv.org/abs/2304.06693
Autor:
Karachentsev, I. D., Makarova, L. N., Koribalski, B. S., Anand, G. S., Tully, R. B., Kniazev, A. Y.
The dwarf irregular galaxy HIPASS J1131-31 was discovered as a source of HI emission at low redshift in such close proximity of a bright star that we call it Peekaboo. The galaxy resolves into stars in images with Hubble Space Telescope, leading to a
Externí odkaz:
http://arxiv.org/abs/2212.03478
The Tip of the Red Giant Branch (TRGB) is an apparent discontinuity in the color-magnitude diagram (CMD) along the giant branch due to the end of the red giant evolutionary phase and is used to measure distances in the local universe. In practice, th
Externí odkaz:
http://arxiv.org/abs/2211.06354
We report observations of five dwarf galaxies in the vicinity of the luminous S0 galaxy NGC 3115 performed with the Advanced Camera for Surveys on the Hubble Space Telescope. Their distances determined via the Tip of the Red Giant Branch are: 10.05 M
Externí odkaz:
http://arxiv.org/abs/2203.01700
Autor:
Tucker, M. A., Shappee, B. J., Kochanek, C. S., Stanek, K. Z., Ashall, C., Anand, G. S., Garnavich, P.
We analyze new multi-filter Hubble Space Telescope (HST) photometry of the normal Type Ia supernova (SN Ia) 2011fe out to $\approx 2400~$days after maximum light, the latest observations to-date of a SN Ia. We model the pseudo-bolometric light curve
Externí odkaz:
http://arxiv.org/abs/2111.01144
Autor:
Hoeflich, P., Ashall, C., Bose, S., Baron, E., Stritzinger, M. D., Davis, S., Shahbandeh, M., Anand, G. S., Baade, D., Burns, C. R., Collins, D. C., Diamond, T. R., Fisher, A., Galbany, L., Hristov, B. A., Hsiao, E. Y., Phillips, M. M., Shappee, B., Suntzeff, N. B., Tucker, M.
We present and analyze a near infrared(NIR) spectrum of the under-luminous Type Ia supernova SN~2020qxp/ASASSN-20jq obtained with NIRES at the Keck Observatory 191 days after B-band maximum. The spectrum is dominated by a number of broad emission fea
Externí odkaz:
http://arxiv.org/abs/2109.03359
Autor:
Tucker, M. A., Ashall, C., Shappee, B. J., Vallely, P. J., Kochanek, C. S., Huber, M. E., Anand, G. S., Keane, J. V., Hsiao, E. Y., Holoien, T. W. -S.
We present new photometric and spectroscopic observations of SN 2019yvq, a Type Ia supernova (SN Ia) exhibiting several peculiar properties including an excess of UV/optical flux within days of explosion, a high SiII velocity, and a low peak luminosi
Externí odkaz:
http://arxiv.org/abs/2009.07856
Akademický článek
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Akademický článek
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Publikováno v:
Monthly Notices of the Royal Astronomical Society; Feb2023, Vol. 518 Issue 4, p5893-5903, 11p