Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Russell B. Makidon"'
Autor:
Douglas Brenner, James P. Lloyd, Rémi Soummer, Anand Sivaramakrishnan, Lewis C. Roberts, Marshall D. Perrin, Ben R. Oppenheimer, James R. Graham, Sasha Hinkley, Jacob L. Mey, Russell B. Makidon, Jeff Kuhn
Publikováno v:
Comptes Rendus Physique. 8:355-364
We present a retrospective on, and some new imaging data from The Lyot Project JHK coronagraph which is used behind the 3.6 m AEOS 941-channel AO telescope on Mt. Haleakala, on the island of Maui in Hawaii. This instrument is the first ‘extreme ada
Autor:
Sasha Hinkley, Rémi Soummer, Douglas Brenner, Russell B. Makidon, Ben R. Oppenheimer, Marshall D. Perrin, Lewis C. Roberts, Laura Newburgh, Anand Sivaramakrishnan, Jeff Kuhn, Michael M. Shara, James R. Graham, James P. Lloyd, Paul Kalas, Andrew Digby
Publikováno v:
The Astrophysical Journal. 650:484-496
A coronagraph in conjunction with adaptive optics provides an effective means to image faint companions of nearby stars from the ground. The images from such a system are complex, however, and need to be fully characterized and understood before plan
Autor:
Douglas Brenner, Ben R. Oppenheimer, Kaitlin M. Kratter, Andrew Digby, Sasha Hinkley, Marshall D. Perrin, Rémi Soummer, Russell B. Makidon, L. C. Roberts, Jeff Kuhn, Anand Sivaramakrishnan
Publikováno v:
EAS Publications Series. 22:199-212
In this communication we illustrate the main steps required for the preprocessing of the Lyot Project Coronagraph data, starting from the raw data to the reduced data. We then discuss the estimation of the performance on direct, unocculted data, by m
Autor:
A. Sivaramakrishnan, Marshall D. Perrin, L. C. Roberts, James R. Graham, Ben R. Oppenheimer, Rémi Soummer, Russell B. Makidon
Publikováno v:
Proceedings of the International Astronomical Union. 1:603-606
Adaptive optics (AO) systems have significantly improved astronomical imaging capabilities over the last decade, and are revolutionizing the kinds of science possible with 45 m class ground-based telescopes. A thorough understanding of AO system perf
Autor:
Andrew Digby, Anand Sivaramakrishnan, Marshall D. Perrin, L. W. Bradford, M. A. Skinner, Nils H. Turner, L. C. Roberts, Russell B. Makidon, Rémi Soummer, T. ten Brummelaar, Ben R. Oppenheimer
Publikováno v:
Proceedings of the International Astronomical Union. 1:613-616
The Lyot Project near-infrared JHK coronagraph achieved first light on the Advanced Electro-Optical System (AEOS) in March 2004. Optical pupil plane imaging at video rates from this coronagraph provides data on atmospheric scintillation and quasi-sta
Autor:
Ben R. Oppenheimer, Bruce Macintosh, Rémi Soummer, Claude Aime, Russell B. Makidon, André Ferrari, Anand Sivaramakrishnan
Publikováno v:
Proceedings of the International Astronomical Union. 1:367-372
This paper summarizes the general theory and properties for Apodized Pupil Lyot Coronagraphs which consist of a classical hard-edged Lyot coronagraph with an upstream pupil apodization. The ideal apodization function can be determined from an integra
Publikováno v:
The Astronomical Journal. 127:2228-2245
We summarize the results of an observing campaign to identify periodic pre?main-sequence (PMS) variables in the NGC?2264 OB association. We find 201 periodic candidates. The mean age of the NGC?2264 periodic variables is approximately 30% greater tha
Autor:
Brian M. Patten, Burton F. Jones, Mark T. Adams, Luisa Rebull, Lynne A. Hillenbrand, Amanda Birmingham, H. Yagi, S. E. Strom, Russell B. Makidon
Publikováno v:
The Astronomical Journal. 123:1528-1547
We present an optical and near-infrared study of a 45' × 45' field in NGC 2264, which includes both S Mon and the Cone Nebula. We report photometry at optical (UBVRCIC) and near-infrared (JHK) wavelengths for ~5600 stars and spectroscopic classifica
Publikováno v:
The Astrophysical Journal. 552:397-408
We summarize the theory of coronagraphic optics, and identify a dimensionless fine-tuning parameter, F, which we use to describe the Lyot stop size in the natural units of the coronagraphic optical train and the observing wavelength. We then present
Autor:
Stefi A. Baum, David Zurek, M. M. Phillips, Massimo Stiavelli, Ray A. Lucas, Stefano Casertano, Marc Postman, Henry C. Ferguson, Mark Dickinson, Andy Lubenow, Alison Sherwin, Crystal L. Martin, Russell B. Makidon, Jennifer Mack, Michael S. Wiggs, Kailash C. Sahu, Sandra Savaglio, Norbert Zacharias, A. Gonnella, Jonathan P. Gardner, L. Mazzuca, Max Mutchler, B. J. Boyle, Beth Perriello, Jeffrey J. E. Hayes, Brian R. Espey, R. Hook, Andrew S. Fruchter, Mike Irwin, Mary Elizabeth Kaiser, Paul C. Hewett, Jennifer Wilson, R. Covarrubias, Ray P. Norris, Piero Madau, Ray J. Weymann, Louis E. Bergeron, Daniel Jones, Roeland P. van der Marel, G. M. Williger, P. Royle, T. Ed Smith, Inger Heyer, Harry I. Teplitz, Alistair R. Walker, John W. MacKenty, Brett S. Blacker, Zolt Levay, C. Marcella Carollo, Robert Williams, Thomas M. Brown, Duilia F. de Mello, Nicholas B. Suntzeff, Nicholas Bernstein
Publikováno v:
The Astronomical Journal. 120:2735-2746
Deep, multiband observations of high Galactic latitude fields are an essential tool for studying topics ranging from Galactic structure to extragalactic background radiation. The Hubble Deep Field (HDF-N) observations obtained in 1995 December establ