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Cited by 329

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation‐based Measurement of the Black Hole Mass

Open access
Peterson, Bradley M., Bentz, Misty C., Desroches, Louis‐Benoit, Filippenko, Alexei V., Ho, Luis C., Kaspi, Shai, Laor, Ari, Maoz, Dan, Moran, Edward C., Pogge, Richard W., Quillen, Alice C.·2005·The Astrophysical Journal

Abstract

A reverberation-mapping program on NGC 4395, the least luminous known Seyfert 1 galaxy, undertaken with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope yields a measurement of the mass of the central black hole M BH = (3.6 ± 1.1) × 10 5 M ☉ . The observations consist of two visits of five orbits each, in 2004 April and July. During each of these visits, the UV continuum varied by at least 10% (rms), and only C IV λ1549 showed corresponding variations large enough to reliably determine the emission-line lag, which was measured to be of order 1 hr for both visits. The size of the C IV-emitting region is about a factor of 3 smaller than expected if the slope of the broad-line region radius-luminosity relationship is identical to that for the Hβ emission line. NGC 4395 is underluminous even for its small black hole mass; the Eddington ratio of ~1.2 × 10 -3 is lower than that of any other active galactic nucleus for which a black hole mass measurement has been made by emission-line reverberation.

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Crossref · 10.1086/444494

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Metadata

Authors
Peterson, B. M., Bentz, M. C., Desroches, L., Filippenko, A. V., Ho, L. C., Kaspi, S., Laor, A., Maoz, D., Moran, E. C., Pogge, R. W., & Quillen, A. C.
Venue
The Astrophysical Journal
Published
2005-10-20
Volume
632
Issue
2
Pages
799-808
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2156831326
Cited by
329
References
42
FWCI
10.93
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation‐based Measurement of the Black Hole Mass. https://app.cochat.ai/papers/10.1086/444494
The paper
Peterson, B. M., Bentz, M. C., Desroches, L., Filippenko, A. V., Ho, L. C., Kaspi, S., Laor, A., Maoz, D., Moran, E. C., Pogge, R. W., & Quillen, A. C. (2005). Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation‐based Measurement of the Black Hole Mass. The Astrophysical Journal. https://doi.org/10.1086/444494

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.