Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Nick Siegler"'
Autor:
Axel Potier, Garreth J. Ruane, Camilo Mejia Prada, Wesley Baxter, Duncan Liu, Hong Tang, A. J. Eldorado Riggs, Phillip Poon, Eduardo Bendek, Nick Siegler, Mary Soria, Mark Hetzel, Charlie Lam, Paul Bierden
Publikováno v:
Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b632d60e3c19a56e592fb35ed730023
https://doi.org/10.1117/12.2629915
https://doi.org/10.1117/12.2629915
Autor:
George H. Rieke, Cameron P. M. Bell, Nick Siegler, Erick T. Young, Andras Gaspar, Jozsef Vinko, Zoltan Balog, Kate Y. L. Su, Robert A. Gutermuth, James Muzerolle, László L. Kiss
We present new deep UBVRI images and high-resolution multi-object optical spectroscopy of the young (~ 6 - 10 Myr old), relatively nearby (800 pc) open cluster IC 2395. We identify nearly 300 cluster members and use the photometry to estimate their s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d82bc4bb71728faa6183d0be002e1b
Autor:
Nick Siegler, Zoltan Balog, I. Pagano, Elisa Distefano, Erick T. Young, S. Messina, Loredana Spezzi, G. Leto, G. Marino, Bruno Merín, D. Barrado y Navascues
Publikováno v:
Astronomy & Astrophysics. 499:541-555
We report the outcome of a deep multi-wavelength study of the IC2391 young open cluster. We aim at uncovering new low-mass and sub-stellar members of the cluster and identifying new debris disk objects. A 30*30 square arcmin area in IC 2391 was obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ea161ec65b139efabab3c2af58dca72
https://doi.org/10.1051/0004-6361/200810609
https://doi.org/10.1051/0004-6361/200810609
Publikováno v:
The Astrophysical Journal. 654:558-569
We present results of a high-resolution, near-infrared survey of 41 nearby, young ( = M6 very low-mass, VLM) populations. We find that the separation distribution of the binaries in this sample peaks at 13+14-9 AU, which is consistent with previous m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05fc8a71862229c7d1438a1e70f73bc
https://doi.org/10.1086/509109
https://doi.org/10.1086/509109
Autor:
Eric E. Mamajek, Nick Siegler, George H. Rieke, Erick T. Young, Nadya Gorlova, James Muzerolle, David Trilling, Kate Y. L. Su
Publikováno v:
The Astrophysical Journal. 654:580-594
We present 24 micron Spitzer/MIPS photometric observations of the ~50 Myr open cluster IC 2391. Thirty-four cluster members ranging in spectral type from B3-M5 were observed in the central square degree of the cluster. Excesses indicative of debris d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04e37461a45e1562c439001266eb5044
https://doi.org/10.1086/509042
https://doi.org/10.1086/509042
Autor:
Rhonda Morgan, Nick Siegler
Publikováno v:
SPIE Proceedings.
NASA's Astrophysics Division plans to initiate mission concept studies in 2016 of large candidate astrophysics missions for consideration by the 2020 Decadal Survey. The studies are expected to include two mission concepts capable of directly imaging
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba1aeafacfd3c4aed8858b805e5b8b88
https://doi.org/10.1117/12.2196770
https://doi.org/10.1117/12.2196770
Publikováno v:
Publications of the Astronomical Society of the Pacific. 118:1591-1603
We report laboratory results of a coronagraphic test bench to assess the intensity reduction differences between a "Gaussian" tapered focal plane coronagraphic mask and a classical hard‐edged "top hat" function mask at extreme adaptive optics (ExAO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::362e1916d5432cbcca55be2043a55a06
https://doi.org/10.1086/509663
https://doi.org/10.1086/509663
Autor:
Nick Siegler, James Muzerolle, Lori E. Allen, Paola D'Alessio, Nuria Calvet, David Trilling, George H. Rieke, Lee Hartmann, Kevin Luhman, Erick T. Young, Charles J. Lada, S. Thomas Megeath, Lucía Adame, August Muench
Publikováno v:
The Astrophysical Journal. 643:1003-1010
We present observations of six late-type members of the young cluster IC 348 detected at 24 μm with the Multiband Imaging Photometer for Spitzer (MIPS). At least four of the objects are probably substellar. Combining these data with ground-based opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::630d25b0fde0d9f945b83a9dfdc0db45
https://doi.org/10.1086/503271
https://doi.org/10.1086/503271
Autor:
Manny Montoya, R. G. Allen, Nick Siegler, R. Sosa, Mario Rascon, Armando Riccardi, Dylan Curley, Donald W. McCarthy, Hubert M. Martin, Piero Salinari, Francois Wildi, Michael Lloyd-Hart, Don Fisher, Doug Miller, Matt Rademacher, Roger Angel, Wolfgang J. Duschl, Guido Brusa, Laird M. Close
Publikováno v:
The Astrophysical Journal. 599:537-547
We present the first scientific images obtained with a deformable secondary mirror adaptive optics (AO) system. We utilized the 6.5 m Multiple Mirror Telescope adaptive optics system to produce high-resolution (FWHM ¼ 0>07) near-infrared (1.6 lm) im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f3de6d3da1f64d768484f8e889404bf
https://doi.org/10.1086/379150
https://doi.org/10.1086/379150
Publikováno v:
The Astrophysical Journal. 598:1265-1276
A survey of 30 nearby M6.0-M7.5 dwarfs with Ks0.8, Delta Ks20 AU) very low mass (M_{tot}3 AU. This binary frequency is less than the ~32% measured among early M dwarfs over the same separation range. Two of the low-mass binaries are probable Hyades o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79da27768e9326f54b7d9695556da19b
https://doi.org/10.1086/378935
https://doi.org/10.1086/378935