K
Karl R. Stapelfeldt
Researcher at Jet Propulsion Laboratory
Publications - 324
Citations - 25368
Karl R. Stapelfeldt is an academic researcher from Jet Propulsion Laboratory. The author has contributed to research in topics: Stars & Planetary system. The author has an hindex of 79, co-authored 313 publications receiving 24172 citations. Previous affiliations of Karl R. Stapelfeldt include California Institute of Technology & Goddard Space Flight Center.
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Journal ArticleDOI
The Multiband Imaging Photometer for Spitzer (MIPS)
George H. Rieke,Erick T. Young,Charles W. Engelbracht,D. M. Kelly,Frank J. Low,Eugene E. Haller,Jeffrey W. Beeman,Karl D. Gordon,John Stansberry,Karl Misselt,J. Cadien,Jane E. Morrison,Gil Rivlis,William B. Latter,Alberto Noriega-Crespo,Deborah Padgett,Karl R. Stapelfeldt,Dean C. Hines,Eiichi Egami,James Muzerolle,Almudena Alonso-Herrero,Myra Blaylock,Herve Dole,Joannah L. Hinz,E. Le Floc'h,Casey Papovich,Pablo G. Pérez-González,Paul S. Smith,Kate Y. L. Su,Lee Bennett,Dave Frayer,David A. Henderson,Nanyao Y. Lu,Frank J. Masci,M. Pesenson,Luisa Rebull,Jeonghee Rho,Jocelyn Keene,Susan R. Stolovy,Stefanie Wachter,W. A. Wheaton,Michael W. Werner,Paul L. Richards +42 more
TL;DR: The Multiband Imaging Photometer for Spitzer (MIPS) as discussed by the authors provides long-wavelength capability for the mission in imaging bands at 24, 70, and 160?m and measurements of spectral energy distributions between 52 and 100?m at a spectral resolution of about 7%.
Journal ArticleDOI
The Spitzer c2d legacy results: star-formation rates and efficiencies; evolution and lifetimes
Neal J. Evans,Michael M. Dunham,Jes K. Jørgensen,Melissa L. Enoch,Melissa L. Enoch,Bruno Merín,Bruno Merín,Ewine F. van Dishoeck,Juan M. Alcalá,Philip C. Myers,Karl R. Stapelfeldt,Tracy L. Huard,Tracy L. Huard,Lori Allen,Paul M. Harvey,Tim A. van Kempen,Geoffrey A. Blake,David W. Koerner,Lee G. Mundy,Deborah L. Padgett,Anneila I. Sargent +20 more
TL;DR: In this article, the authors combined information drawn from studies of individual clouds into a combined and updated statistical analysis of star-formation rates and efficiencies, numbers and lifetimes for spectral energy distribution (SED) classes, and clustering properties.
Journal ArticleDOI
Optical Images of an Exosolar Planet 25 Light-Years from Earth
Paul Kalas,James R. Graham,Eugene Chiang,Michael P. Fitzgerald,Mark Clampin,Edwin S. Kite,Karl R. Stapelfeldt,Christian Marois,John Krist +8 more
TL;DR: Optical observations of an exoplanet candidate, Fomalhaut b, show that the planet's mass is at most three times that of Jupiter; a higher mass would lead to gravitational disruption of the belt, matching predictions of its location.
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From molecular cores to planet-forming disks: An SIRTF legacy program
Neal J. Evans,Lori E. Allen,Geoffrey A. Blake,Adwin Boogert,Tyler L. Bourke,Paul M. Harvey,Jacqueline E. Kessler,David W. Koerner,Chang Won Lee,Lee G. Mundy,Philip C. Myers,Deborah Padgett,Klaus M. Pontoppidan,Anneila I. Sargent,Karl R. Stapelfeldt,Ewine F. van Dishoeck,Chadwick H. Young,Kaisa E. Young +17 more
TL;DR: The Space Infrared Telescope (SIRTF) provides an unprecedented improvement in sensitivity as mentioned in this paper, which can be used to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star forming environments.
Journal ArticleDOI
The performance and calibration of wfpc2 on the hubble space telescope
Jon A. Holtzman,J. J. Hester,Stefano Casertano,John T. Trauger,Alan M. Watson,Gilda E. Ballester,Christopher J. Burrows,John Clarke,David Crisp,Robin W. Evans,John S. Gallagher,Richard E. Griffiths,John G. Hoessel,Lynn D. Matthews,Jeremy Mould,Paul A. Scowen,Karl R. Stapelfeldt,James A. Westphal +17 more
TL;DR: The Wide Field Planetary Camera 2 (WFPC2) was installed in the Hubble Space Telescope (HST) in 1993 December and has been providing high-quality images as mentioned in this paper.