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Abstract
We present new observations leading to an improved black hole mass estimate for the Seyfert 1 galaxy NGC 4593 as part of a reverberation-mapping campaign conducted at the MDM Observatory. Cross-correlation analysis of the Ho emission-line light curve with the optical continuum light curve reveals an emission-line time delay of tau(cent) = 3.73 +/- 0.75 days. By combining this time delay with the H beta line width, we derive a central black hole mass of M-BH = (9.8 +/- 2. 1) x 10(6) M circle dot, an improvement in precision of a factor of several over past results.
Original language | English |
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Pages (from-to) | 152-158 |
Number of pages | 7 |
Journal | Astrophysical Journal Letters |
Volume | 653 |
DOIs | |
Publication status | Published - 10 Dec 2006 |
Keywords
- galaxies : active
- galaxies : nuclei
- galaxies : Seyfert
- ACTIVE GALACTIC NUCLEI
- LINE REGION SIZES
- DUST TORUS
- EMISSION
- VARIABILITY
- NGC-4151
- NGC-5548
- PROJECT
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Dive into the research topics of 'The mass of the black hole in the Seyfert 1 galaxy NGC 4593 from reverberation mapping'. Together they form a unique fingerprint.Projects
- 1 Finished
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Astrophysics at St Andrews: Astrophysics at St.Andrews
Cameron, A. C. (PI) & Horne, K. D. (CoI)
1/04/06 → 31/03/11
Project: Standard