Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Michael N. Fanelli"'
Autor:
Nushkia Chamba, Pamela M. Marcum, Amélie Saintonge, Alejandro S. Borlaff, Matthew J. Hayes, Valentin J. M. Le Gouellec, S. Drew Chojnowski, Michael N. Fanelli
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 247 (2024)
Mapping stars and gas in nearby galaxies is fundamental for understanding their growth and the impact of their environment. This issue is addressed by comparing the stellar “edges” of galaxies D _stellar , defined as the outermost diameter where
Externí odkaz:
https://doaj.org/article/508c8f70e4074164b835c5e54139ee19
Autor:
Alejandro S. Borlaff, Pamela M. Marcum, Mehmet Alpaslan, Pasquale Temi, Nushkia Chamba, Drew S. Chojnowski, Michael N. Fanelli, Anton M. Koekemoer, Seppo Laine, Enrique Lopez-Rodriguez, Aneta Siemiginowska
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 169 (2024)
We present Selective Amplification of Ultra Noisy Astronomical Signal ( SAUNAS ), a pipeline designed for detecting diffuse X-ray emission in the data obtained with the Advanced CCD Imaging Spectrometer (ACIS) of the Chandra X-ray Observatory. SAUNAS
Externí odkaz:
https://doaj.org/article/e4cf923042a549deab216faf85a9b382
Autor:
Luis Ossa-Fuentes, Alejandro S. Borlaff, John E. Beckman, Pamela M. Marcum, Michael N. Fanelli
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 149 (2023)
The structure of the outskirts of galaxies provides valuable information about their past and evolution. Due to their projected orientation, edge-on isolated galaxies effectively serve as test labs in which to study the three-dimensional structures o
Externí odkaz:
https://doaj.org/article/a27906a952d243c59affbbcfdcc96f8f
Publikováno v:
The Astronomical Journal. 157:158
We report on the neutral hydrogen gas content (21-cm emission) of eight extremely isolated early-type galaxies (IEGs) using the Green Bank Telescope. Emission is detected in seven of the eight objects. This paper is the third in a series that collect
Autor:
Forrest R. Girouard, Martin C. Stumpe, Sean McCauliff, Joseph D. Twicken, Jeffrey C. Smith, Robert L. Morris, Jeffery J. Kolodziejczak, Jeffrey Van Cleve, Michael N. Fanelli, Thomas Barclay, Jon M. Jenkins
Publikováno v:
Publications of the Astronomical Society of the Pacific. 124:1000-1014
With the unprecedented photometric precision of the Kepler Spacecraft, significant systematic and stochastic errors on transit signal levels are observable in the Kepler photometric data. These errors, which include discontinuities, outliers, systema
Autor:
Rasmus Handberg, Savita Mathur, Jessie L. Christiansen, Dennis Stello, D. A. Caldwell, Enrico Corsaro, William J. Chaplin, Y. P. Elsworth, Tiago L. Campante, Christoffer Karoff, Thierry Appourchaux, Rafael A. García, David Salabert, Patrick Gaulme, Saskia Hekker, Ian W. Roxburgh, Timothy R. White, Daniel Huber, Graham A. Verner, Jérôme Ballot, Anne-Marie Broomhall, Roger New, Alfio Bonanno, Timothy R. Bedding, Michael N. Fanelli, C. Régulo, Benoit Mosser
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 415:3539-3551
We present the asteroseismic analysis of 1948 F-, G- and K-type main-sequence and subgiant stars observed by the NASA {\em Kepler Mission}. We detect and characterise solar-like oscillations in 642 of these stars. This represents the largest cohort o
Autor:
A. A. Pamyatnykh, K. Uytterhoeven, J. K. Hollek, Patrick Lenz, J. Christensen-Dalsgaard, Marcella Marconi, Barry Smalley, Róbert Szabó, D. W. Kurtz, Khadeejah A. Ibrahim, L. A. Balona, Giovanni Catanzaro, Kamal Uddin, Juan Carlos Suárez, H. Kjeldsen, Michael N. Fanelli, V. Ripepi, Michel Breger
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 414:1721-1731
In the faint star KIC 9700322 observed by the Kepler satellite, 76 frequencies with amplitudes from 14 to 29000 ppm were detected. The two dominant frequencies at 9.79 and 12.57 c/d (113.3 and 145.5 \mu Hz), interpreted to be radial modes, are accomp
Publikováno v:
The Astronomical Journal. 155:15
Publikováno v:
Proceedings of the International Astronomical Union. 11
We explore the properties of early-type galaxies (ETGs) in rich environments such as clusters of galaxies. The L24/LK distribution of ETGs in both Virgo and Coma clusters shows that some lenticulars (S0, 10 in Coma and 3 in Virgo) have a much larger
Publikováno v:
The Astronomical Journal. 127:3213-3234
We have conducted a BVR imaging survey of nine early-type galaxies previously verified to exist in extremely isolated environments. Our goals are to establish a baseline of morphological and photometric properties for spheroidal systems evolving in e