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Changing-look Quasar Candidates: First Results from Follow-up Spectroscopy of Highly Optically Variable Quasars

Autor: Amy Lebleu, Matthew J. Graham, Paul J. Green, Nicholas P. Ross, Daniel Stern, Eugene A. Magnier, Nigel Metcalfe, Jessie C. Runnoe, Nick Kaiser, Alastair Bruce, Chelsea L. MacLeod, John J. Ruan, Andy Lawrence, Michael Eracleous, Scott F. Anderson, K. C. Chambers, William S. Burgett, D. Homan

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2019, 874 (1), pp.8. ⟨10.3847/1538-4357/ab05e2⟩
The astrophysical journal, 2019, Vol.874(1), pp.8 [Peer Reviewed Journal]
MacLeod, C L, Green, P J, Anderson, S F, Bruce, A, Eracleous, M, Graham, M, Homan, D, Lawrence, A, LeBleu, A, Ross, N P, Ruan, J J, Runnoe, J, Stern, D, Burgett, W, Chambers, K C, Kaiser, N, Magnier, E & Metcalfe, N 2019, ' Changing-Look Quasar Candidates : First Results from Follow-up Spectroscopy of Highly Optically Variable Quasars ', Astrophysical Journal, vol. 874, no. 1 . https://doi.org/10.3847/1538-4357/ab05e2

Active galactic nuclei (AGN) that show strong rest-frame optical/UV variability in their blue continuum and broad line emission are classified as "changing-look" AGN, or at higher luminosities changing look quasars (CLQs). These surprisingly large an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d3b0471ec0100c624291e01b6a31517
https://resolver.caltech.edu/CaltechAUTHORS:20190315-085851951

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Supermassive Black Hole Binary Candidates from the Pan-STARRS1 Medium Deep Survey

Autor: Richard J. Wainscoat, Suvi Gezari, K. C. Chambers, Nigel Metcalfe, Tingting Liu, William S. Burgett, Megan Ayers, Christopher Waters, Klaus-Werner Hodapp, M. E. Huber, John L. Tonry, Rolf-Peter Kudritzki

Publikováno v: Astrophysical journal, 2019, Vol.884(1), pp.36 [Peer Reviewed Journal]

We present a systematic search for periodically varying quasar and supermassive black hole binary (SMBHB) candidates in the Pan-STARRS1 Medium Deep Survey. From $\sim9,000$ color-selected quasars in a $\sim50$ deg$^{2}$ sky area, we initially identif

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5055a570fa9dd7de78dd44bb82588a4

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PS1-13cbe: the rapid transition of a Seyfert 2 to a Seyfert 1

Autor: Richard J. Wainscoat, Ryan Chornock, Armin Rest, Reza Katebi, Edo Berger, Rolf-Peter Kudritzki, David O. Jones, William S. Burgett, Nick Kaiser, Ragnhild Lunnan, Raffaella Margutti, Christopher Waters, Eugene A. Magnier, Daniel Scolnic

Publikováno v: Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 487 (3), pp.4057-4070. ⟨10.1093/mnras/stz1552⟩

We present a nuclear transient event, PS1-13cbe, that was first discovered in the Pan-STARRS1 survey in 2013. The outburst occurred in the nucleus of the galaxy SDSS J222153.87+003054.2 at z = 0.123 55, which was classified as a Seyfert 2 in a pre-ou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf4867826fac9e533ddb274a6f60fd2
https://hal.archives-ouvertes.fr/hal-01937773

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Precision Distances to Dwarf Galaxies and Globular Clusters from Pan-STARRS1 3π RR Lyrae

Autor: Nina Hernitschek, Richard J. Wainscoat, Eugene A. Magnier, Christopher M. Waters, William S. Burgett, Nigel Metcalfe, Rolf-Peter Kudritzki, Judith G. Cohen, Hans-Walter Rix

Publikováno v: The Astrophysical Journal
Astrophysical journal, 2019, Vol.871(1), pp.49 [Peer Reviewed Journal]

We present new spatial models and distance estimates for globular clusters (GC) and dwarf spheroidals (dSphs) orbiting our Galaxy based on RR Lyrae (RRab) stars in the Pan-STARRS1 (PS1) 3$\pi$ survey. Using the PS1 sample of RRab stars from Sesar et

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::732aee8e27298b861b3b3855c05aa87a
https://hdl.handle.net/21.11116/0000-0005-D0FA-6

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Akademický článek

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Galactic reddening in 3D from stellar photometry – an improved map

Autor: Rolf-Peter Kudritzki, Edward F. Schlafly, Peter W. Draper, Hans-Walter Rix, Douglas P. Finkbeiner, Nicolas F. Martin, Christopher Waters, Gregory M. Green, William S. Burgett, Eugene A. Magnier, Richard J. Wainscoat, Nick Kaiser, Klaus W. Hodapp, John L. Tonry, Nigel Metcalfe, H. Flewelling

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 478 (1), pp.651-666. ⟨10.1093/mnras/sty1008⟩
NASA Astrophysics Data System
Monthly notices of the Royal Astronomical Society, 2018, Vol.478(1), pp.651-666 [Peer Reviewed Journal]

We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations greater than -30 degrees) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry of 800 million stars from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b93c6c5a810b474e4e7adda241a97e7
https://hal.archives-ouvertes.fr/hal-03154963

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Giant Magellan Telescope site and enclosure computational fluid dynamics modeling and analysis

Autor: Abdi Khodadoust, John Ladd, Matt Oser, Bruce C. Bigelow, William S. Burgett

Publikováno v: Modeling, Systems Engineering, and Project Management for Astronomy VIII.

The Giant Magellan Telescope (GMT) is currently planned for construction at Las Campanas Peak in northern Chile. Part of the next generation of extremely large telescopes, GMT will be one of the most powerful ground-based telescopes in operation in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95cc43d80f7ac73aa83766074aa04e6d
https://doi.org/10.1117/12.2312941

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