C
Christian D. Howard
Researcher at Ames Research Center
Publications - 13
Citations - 1111
Christian D. Howard is an academic researcher from Ames Research Center. The author has contributed to research in topics: T Tauri star & Debris disk. The author has an hindex of 10, co-authored 13 publications receiving 1061 citations. Previous affiliations of Christian D. Howard include Google & University of California, Los Angeles.
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Journal ArticleDOI
The Bulge Radial Velocity Assay (BRAVA). II. Complete Sample and Data Release
Andrea Kunder,Andreas Koch,R. Michael Rich,Roberto De Propris,Christian D. Howard,Scott A. Stubbs,Christian Johnson,Christian Johnson,Juntai Shen,Yougang Wang,Annie C. Robin,John Kormendy,Mario Soto,Peter M. Frinchaboy,David B. Reitzel,David B. Reitzel,HongSheng Zhao,Livia Origlia +17 more
TL;DR: In this paper, the authors presented new radial velocity measurements from the Bulge Radial Velocity Assay, a large-scale spectroscopic survey of M-type giants in the Galactic bulge/bar region.
Journal ArticleDOI
The Bulge Radial Velocity Assay (BRAVA): II. Complete Sample and Data Release
Andrea Kunder,Andreas Koch,R. Michael Rich,Roberto De Propris,Christian D. Howard,Scott A. Stubbs,Christian Johnson,Christian Johnson,Juntai Shen,Yougang Wang,Annie C. Robin,John Kormendy,Mario Soto,Peter M. Frinchaboy,David B. Reitzel,David B. Reitzel,HongSheng Zhao,Livia Origlia +17 more
TL;DR: In this article, the authors present new radial velocity measurements from the Bulge Radial Velocity Assay (BRAVA), a large scale spectroscopic survey of M-type giants in the Galactic bulge/bar region.
Journal ArticleDOI
Kinematics At the Edge of the Galactic Bulge: Evidence for Cylindrical Rotation
Christian D. Howard,Christian D. Howard,R. Michael Rich,Will Clarkson,Ryan Mallery,Ryan Mallery,John Kormendy,Roberto De Propris,Annie C. Robin,Roger Fux,David B. Reitzel,HongSheng Zhao,Konrad Kuijken,Andreas Koch +13 more
TL;DR: In this article, the authors present new results from BRAVA, a large-scale radial velocity survey of the Galactic bulge, using M giant stars selected from the Two Micron All Sky Survey catalog as targets for the Cerro Tololo Inter-American Observatory 4 m Hydra multi-object spectrograph.
Journal ArticleDOI
Gasps-a herschel survey of gas and dust in protoplanetary disks: Summary and initial statistics
William R. F. Dent,Wing-Fai Thi,Inga Kamp,Jonathan Williams,François Ménard,Sean M. Andrews,David R. Ardila,Giambattista Aresu,Jean-Charles Augereau,D. Barrado y Navascués,D. Barrado y Navascués,Sean D. Brittain,Andres Carmona,David R. Ciardi,William C. Danchi,J. Donaldson,Gaspard Duchêne,Gaspard Duchêne,Carlos Eiroa,Davide Fedele,Carol A. Grady,I. de Gregorio-Molsalvo,Christian D. Howard,Nuria Huélamo,Alexander V. Krivov,J. Lebreton,René Liseau,C. Martin-Zaidi,Geoffrey S. Mathews,Gwendolyn Meeus,I. Mendigutía,Benjamin Montesinos,Maria Morales-Calderon,A. Mora,Hideko Nomura,Eric Pantin,Ilaria Pascucci,Neil M. Phillips,Christophe Pinte,Linda Podio,Suzanne Ramsay,B. Riaz,Pablo Riviere-Marichalar,Aki Roberge,Göran Sandell,Enrique Solano,I. Tilling,José M. Torrelles,B. Vandenbusche,S. Vicente,Glenn J. White,Glenn J. White,Peter Woitke +52 more
TL;DR: The Gas Survey of Protoplanetary Systems (GASPS) as discussed by the authors is a large-scale far-infrared line and continuum survey of protoplanetary disk through to young debris disk systems carried out using the ACS instrument on the Herschel Space Observatory.
Journal ArticleDOI
Herschel-PACS observation of the 10 Myr old T Tauri disk TW Hya - Constraining the disk gas mass
Wing-Fai Thi,Wing-Fai Thi,G. Mathews,François Ménard,Peter Woitke,Peter Woitke,Gwendolyn Meeus,Pablo Riviere-Marichalar,Christophe Pinte,Christophe Pinte,Christian D. Howard,Aki Roberge,Göran Sandell,Ilaria Pascucci,B. Riaz,Carol A. Grady,William R. F. Dent,Inga Kamp,Gaspard Duchêne,Gaspard Duchêne,Jean-Charles Augereau,Eric Pantin,Bart Vandenbussche,I. Tilling,Jonathan Williams,Carlos Eiroa,David Barrado,J. M. Alacid,Sean M. Andrews,David R. Ardila,Giambattista Aresu,Sean D. Brittain,David R. Ciardi,William C. Danchi,Davide Fedele,Davide Fedele,I. de Gregorio-Monsalvo,Ana M. Heras,Nuria Huélamo,Alexander V. Krivov,J. Lebreton,René Liseau,C. Martin-Zaidi,I. Mendigutía,Benjamin Montesinos,Alcione Mora,Maria Morales-Calderon,Hideko Nomura,Neil M. Phillips,L. Podio,D. R. Poelman,Suzanne Ramsay,Ken Rice,Enrique Solano,H. Walker,Glenn J. White,G. Wright +56 more
TL;DR: In this article, the fine-structure lines of [OI] and [CII] are observed as part of the open-time large program GASPS, and simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses.