Zobrazeno 1 - 10
of 790
pro vyhledávání: '"H. Jacoby"'
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 271, Iss 2, p 40 (2024)
Thanks to the MUSE integral field spectrograph on board the Very Large Telescope (VLT), extragalactic distance measurements with the [O iii ] λ 5007 planetary nebula luminosity function (PNLF) are now possible out to ∼40 Mpc. Here we analyze the V
Externí odkaz:
https://doaj.org/article/5a6cc1621a6e41bfb6c918e889e46ef2
Autor:
Sarah H. Jacoby
Love and Liberation reads the autobiographical and biographical writings of one of the few Tibetan Buddhist women to record the story of her life. Sera Khandro Künzang Dekyong Chönyi Wangmo (also called Dewé Dorjé, 1892–1940) was extraordinary
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 59 (2023)
Planetary nebula (PN) surveys in systems beyond ∼10 Mpc often find high-excitation, point-like sources with [O iii ] λ 5007 fluxes greater than the apparent bright-end cutoff of the planetary nebula luminosity function (PNLF). Here we identify PN
Externí odkaz:
https://doaj.org/article/99d307d995f84d83bb36f1afedee3ba2
Autor:
Azlizan A. Soemitro, Martin M. Roth, Peter M. Weilbacher, Robin Ciardullo, George H. Jacoby, Ana Monreal-Ibero, Norberto Castro, Genoveva Micheva
We perform a deep survey of planetary nebulae (PNe) in the spiral galaxy NGC 300 to construct its planetary nebula luminosity function (PNLF). We aim to derive the distance using the PNLF and to probe the characteristics of the most luminous PNe. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4ef8aa7ca13175ba9e815d018cc2bc9
http://arxiv.org/abs/2301.03437
http://arxiv.org/abs/2301.03437
We report initial results from an ongoing spectroscopic survey of central stars of faint planetary nebulae (PNe), obtained with the Low-Resolution Spectrograph on the Hobby-Eberly Telescope. The six PN nuclei (PNNi) discussed here all have strong emi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a8d3e7098cbe3e5ebdb8fe9cde6f4a
Autor:
David Jones, Todd C. Hillwig, Orsola De Marco, Jonathan Hurowitz, Kayla Martin, Alison F. Crocker, Josh Dey, G. H. Jacoby, Matthias Kronberger
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 506:5223-5246
We present the identification of 34 likely binary central stars (CSs) of planetary nebulae (PNe) from {\it Kepler/K2} data, seven of which show eclipses. Of these, 29 are new discoveries. Two additional CSs with more complicated variability are also
Autor:
Charles C. Steidel, Eric W. Peng, Jason R. Fucik, Reston Nash, Stephen Kaye, George H. Jacoby, Bernard Delabre, Ramya Sethuram, Devika Divakar, Hari Mohan Varshney, Thirupathi Sivarani, Fumihiro Uraguchi, Shinobu Ozaki, Hangxin Ji, Tao LV, Kent Chiu, Qinfeng Zhu, David Andersen, John Miles, Davide Lasi
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 498:L114-L118
Eight planetary nebulae have been identified as `born-again', a class of object typified by knotty secondary ejecta having low masses ($\sim$$10^{-4}$ M$_{\odot}$) with nearly no hydrogen. Abell 30, the archetype of the class, also belongs to a small
Autor:
Travis A. Rector, Allen W. Shafter, William A. Burris, Matthew J. Walentosky, Kendall D. Viafore, Allison L. Strom, Richard J. Cool, Nicole A. Sola, Hannah Crayton, Catherine A. Pilachowski, George H. Jacoby, Danielle L. Corbett, Michelle Rene, Denise Hernandez
Publikováno v:
The Astrophysical Journal. 936:117
A long-term (1995–2016) survey for novae in the nearby Andromeda galaxy (M31) was conducted as part of the Research-Based Science Education initiative. During the course of the survey 180 nights of observation were completed at Kitt Peak, Arizona.
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