411 citations · 1.3k across the 64 of their papers we have counts for
8 papers · 1 filter
Recollimation boundary layers as X-ray sources in young stellar jets
Hans Moritz Günther, Zhi-Yun Li, P. C. Schneider
Young stars accrete mass from circumstellar disks and in many cases, the accretion coincides with a phase of massive outflows, which can be highly collimated. Those jets emit predo…
Young Stellar Object Variability (YSOVAR): Long Timescale Variations in the Mid-Infrared
L. M. Rebull, A. M. Cody, K. R. Covey +32
The YSOVAR (Young Stellar Object VARiability) Spitzer Space Telescope observing program obtained the first extensive mid-infrared (3.6 & 4.5 um) time-series photometry of the Orion…
HST FUV monitoring of TW Hya
H. M. Günther, N. S. Brickhouse, A. K. Dupree +3
Classical T Tauri stars (CTTS) are young (< 10 Myr), cool stars that actively accrete matter from a disk. They show strong, broad and asymmetric, atomic FUV emission lines. Neither…
Upgrading the Solar-Stellar Connection: News about activity in Cool Stars
H. M. Günther, K. Poppenhaeger, P. Testa +9
In this splinter session, ten speakers presented results on solar and stellar activity and how the two fields are connected. This was followed by a lively discussion and supplement…
YSOVAR: Mid-IR variability in the star forming region Lynds 1688
H. M. Günther, A. M. Cody, K. R. Covey +14
The emission from young stellar objects (YSOs) in the mid-IR is dominated by the inner rim of their circumstellar disks. We present an IR-monitoring survey of about 800 objects in…
Burn Out or Fade Away? On the X-ray and Magnetic Death of Intermediate Mass Stars
Jeremy J. Drake, Jonathan Braithwaite, Vinay Kashyap +2
The nature of the mechanisms apparently driving X-rays from intermediate mass stars lacking strong convection zones or massive winds remains poorly understood, and the possible rol…
The corona of HD 189733 and its X-ray activity
I. Pillitteri, S. J. Wolk, J. Lopez-Santiago +5
Abridged. Here we report on the X-ray activity of the primary star, HD189733 A, using a new XMM-Newton observation and a comparison with the previous X-ray observations. The spectr…
CSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability
Ann Marie Cody, John Stauffer, Annie Baglin +42
We present the Coordinated Synoptic Investigation of NGC 2264, a continuous 30-day multi-wavelength photometric monitoring campaign on more than 1000 young cluster members using 16…