Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Daniel G. Fabricant"'
Autor:
Jubee Sohn, Margaret J. Geller, Ho Seong Hwang, Daniel G. Fabricant, Yousuke Utsumi, Ivana Damjanov
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 2, p 94 (2023)
HectoMAP is a dense redshift survey of 95,403 galaxies based primarily on MMT spectroscopy with a median redshift z = 0.345. The survey covers 54.64 deg ^2 in a 1.°5 wide strip across the northern sky centered at a decl. of 43.°25. We report the re
Externí odkaz:
https://doaj.org/article/91559bfcbcbe4458981c98a45b41f432
Autor:
Anton V. Afanasiev, Kirill A. Grishin, Ivan Yu. Katkov, Daniel G. Fabricant, Sean Moran, Igor Chilingarian, Masafumi Yagi
Faint extended elliptically-shaped ultra-diffuse galaxies and slightly brighter and more compact dwarf elliptical and lenticular stellar systems are common in galaxy clusters. Their poorly constrained evolutionary paths can be studied by identifying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49c4396be4487652701dac4b519a6325
http://arxiv.org/abs/2111.01140
http://arxiv.org/abs/2111.01140
Autor:
Ivan Yu. Katkov, Anastasia V. Kasparova, R. I. Uklein, Anna S. Saburova, Igor Chilingarian, Daniel G. Fabricant
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 489:4669-4678
The dominant physical processes responsible for the formation and longevity of giant gaseous and stellar discs in galaxies remain controversial. Although they are rare (less than 10 confirmed as of now), giant low-surface brightness (gLSB) discy gala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0e25d91a037ef115c5e12fc93216d46
https://doi.org/10.1093/mnras/stz2434
https://doi.org/10.1093/mnras/stz2434
Autor:
David Charbonneau, Robert G. Fata, Jonathan Irwin, Peter Doherty, Juliana Garcia-Mejia, Joe M. Zajac, Daniel G. Fabricant
Publikováno v:
Ground-based and Airborne Telescopes VIII.
We report on the status of The Tierras Observatory at the F.L. Whipple Observatory atop Mt. Hopkins, Arizona, a refurbished 1.3-m ultra-precise fully-automated photometer. Tierras is designed to regularly achieve photometric precisions below 700 ppm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ea9fac84248034da275afe089d823f3
https://doi.org/10.1117/12.2561467
https://doi.org/10.1117/12.2561467
We measure the central stellar velocity dispersion function for quiescent galaxies in a set of nine northern clusters in the redshift range $0.18 < z < 0.29$ and with strong lensing arcs in Hubble Space Telescope images. The velocity dispersion funct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5f12d261201f01eb5caa80c73e570d6
http://arxiv.org/abs/2007.00679
http://arxiv.org/abs/2007.00679
Autor:
Kirill A. Grishin, Igor Chilingarian, Daniel G. Fabricant, Anton V. Afanasiev, Ivan Yu. Katkov
Publikováno v:
Proceedings of the International Astronomical Union. 14:365-368
Ultra-diffuse galaxies (UDGs) have sizes comparable to the Milky Way and stellar masses of about 1/1000 of it. They attracted a lot of attention as possible “dark galaxies” heavily dominated by dark matter, however, no reliable dynamical mass est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1d857ad24c9dc868ca824345790cd3
https://doi.org/10.1017/s174392131800769x
https://doi.org/10.1017/s174392131800769x
Autor:
Vladimir Kradinov, Matthew R. Smith, Harland W. Epps, Henry Bergner, John C. Geary, Deborah Freedman Woods, Patricia Brennan, Daniel G. Fabricant, Robert G. Fata, Brian McLeod, Warren R. Brown, Stephen Amato, Jack Barberis, Mark Mueller, Joseph Zajac, Igor Chilingarian, Thomas Gauron
Binospec is a high throughput, 370 to 1000 nm, imaging spectrograph that addresses two adjacent 8' by 15' fields of view. Binospec was commissioned in late 2017 at the f/5 focus of the 6.5m MMT and is now available to all MMT observers. Aperture mask
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dac3b428b656536253cfad05a7240f48
http://arxiv.org/abs/1905.03320
http://arxiv.org/abs/1905.03320
Autor:
Margaret J. Geller, Ho Seong Hwang, Yousuke Utsumi, Jubee Sohn, Daniel G. Fabricant, Sean Moran
Publikováno v:
The Astrophysical Journal. 909:129
HectoMAP is a dense, red-selected redshift survey to a limiting $r = 21.3$ covering 55 square degrees in a contiguous 1.5$^\circ$ strip across the northern sky. This region is also covered by the Subaru/Hyper Suprime-Cam (HSC) Subaru Strategic Progra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ead3155dc76da734719f24a245ca448
https://doi.org/10.3847/1538-4357/abd9be
https://doi.org/10.3847/1538-4357/abd9be
Autor:
Jaehyon Rhee, William F. Wyatt, Warren R. Brown, Igor Chilingarian, Jessica Mink, Sean Moran, Michael J. Kurtz, Daniel G. Fabricant, Susan Tokarz
Publikováno v:
The Astronomical Journal. 161:3
We announce the public release of 141,531 moderate-dispersion optical spectra of 72,247 objects acquired over the past 25 years with the FAST Spectrograph on the Fred L. Whipple Observatory 1.5-meter Tillinghast telescope. We describe the data acquis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b350ed34364a2f70d090f0d93a25b64d
https://doi.org/10.3847/1538-3881/abc06e
https://doi.org/10.3847/1538-3881/abc06e
Autor:
Daniel G. Fabricant, John Roll, David R. Weaver, Dylan Curley, Maureen A. Conroy, Matthew L. N. Ashby, Brian A. McLeod, Nelson Caldwell, David J. Osip, John C. Geary, Andrew Szentgyorgyi, Povilas Palunas, Thomas Gauron, Timothy Norton, Stephen Amato, Matthew J. Holman, Mario R. Pieri, Mark Ordway, Joseph Zajac
Publikováno v:
Publications of the Astronomical Society of the Pacific. 127:366-382
Megacam is a large-format optical camera that can be operated at the f/5 Cassegrain foci of the MMT on Mount Hopkins, Arizona, and the Magellan Clay telescope at Las Campanas Observatory, Chile. Megacam's focal plane is composed of 36 closely packed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f814db2f13e6f381982716f64c920657
https://doi.org/10.1086/680687
https://doi.org/10.1086/680687