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astro-ph1995★ 119 cited
Broad Absorption Line QSOs Observed by the ROSAT PSPC
Paul J. Green, Smita Mathur
Recent results from the ROSAT All-Sky Survey (RASS) have shown that broad absorption line (BAL) QSOs are either highly absorbed or underluminous in the soft X-ray bandpass. Here, w…
astro-ph1995
Strong X-ray Absorption in a BALQSO: PHL5200
Smita Mathur, Martin Elvis, K. P. Singh
We present observations of the z=1.98 prototype BALQSO: PHL5200. The source was detected in both SIS and GIS. A power-law spectrum () with lar…
astro-ph1995★ 56 cited
Optical Detection of the Hidden Nuclear Engine in NGC~4258
Belinda J. Wilkes, Gary D. Schmidt, Paul S. Smith +2
The sub-parsec masing disk recently found to be orbiting a central mass of ~\msun\ in the Seyfert/LINER galaxy NGC~4258 provides the most compelling evidence to…