136 citations · 407 across the 5 of their papers we have counts for
11 papers · 1 filter
An X-ray photometry system I: Chandra ACIS
H. -J. Grimm, J. McDowell, G. Fabbiano +1
We present a system of X-ray photometry for the Chandra satellite. X-ray photometry can be a powerful tool to obtain flux estimates, hardness ratios, and colors unbiased by assumpt…
c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H_2 gas-phase lines
Fred Lahuis, Ewine F. van Dishoeck, Geoffrey A. Blake +3
We present a survey of mid-infrared gas-phase lines toward a sample of 76 circumstellar disks around low mass pre-main sequence stars from the Spitzer "Cores to Disks" legacy progr…
Modeling Spitzer observations of VV Ser. I. The circumstellar disk of a UX Orionis star
Klaus M. Pontoppidan, Cornelis P. Dullemond, Geoffrey A. Blake +5
We present mid-infrared Spitzer-IRS spectra of the well-known UX Orionis star VV Ser. We combine the Spitzer data with interferometric and spectroscopic data from the literature co…
Spitzer-IRS spectra of disks around T Tauri stars II. PAH emission features
V. C. Geers, J. -C. Augereau, K. M. Pontoppidan +10
Aims: We search for PAH features towards T Tauri stars and compare them with surveys of Herbig Ae/Be stars. The presence and strength of the PAH features are interpreted with disk…
Young, Low-Mass Brown Dwarfs with Mid-Infrared Excesses
K. N. Allers, J. E. Kessler-Silacci, L. A. Cieza +1
We have combined new I, J, H, and Ks imaging of portions of the Chamaeleon II, Lupus I, and Ophiuchus star-forming clouds with 3.6 to 24 micron imaging from the Spitzer Legacy Prog…
Hot Organic Molecules Toward a Young Low-Mass Star: A Look at Inner Disk Chemistry
F. Lahuis, E. F. van Dishoeck, A. C. A. Boogert +8
Spitzer Space Telescope spectra of the low mass young stellar object (YSO) IRS 46 (L_bol ~ 0.6 L_sun) in Ophiuchus reveal strong vibration-rotation absorption bands of gaseous C2H2…