16 citations · 38 across the 4 of their papers we have counts for
4 papers
Looking deep into the Cat's Eye: Structure and rotation in the fast wind of the PN central star of NGC6543
R. K. Prinja, D. L. Massa, M. Cantiello
We present HST/STIS time-series spectroscopy of the central star of the "Cat's Eye" planetary nebula NGC 6543. Intensive monitoring of the UV lines over a 5.8 hour period reveals w…
PN fast winds: Temporal structure and stellar rotation
R. K. Prinja, D. L. Massa, M. A. Urbaneja +1
To diagnose the time-variable structure in the fast winds of central stars of planetary nebulae (CSPN), we present an analysis of P Cygni line profiles in FUSE satellite far-UV spe…
The dense and asymmetric central star wind of the young PN He 2-138
R. K. Prinja, S. E. Hodges, M. A. Urbaneja +1
We present optical ESO time-series and UV archival (FUSE, HST, IUE) spectroscopy of the H-rich central star of He 2-138. Our study targets the central star wind in a very young pla…
The effects of clumping on wind line variability
D. Massa, R. K. Prinja, A. W. Fullerton
We review the effects of clumping on the profiles of resonance doublets. By allowing the ratio of the doublet oscillator strenghts to be a free parameter, we demonstrate that doubl…