MIT Kavli Institute

Publications

SEYFERT GALAXIES

Title

Publication

Publication Type

Authors

Subjects

Date

Title

4U0241+61 – A luminous low-redshift QSO

Publication

Nature June 1978. 1978Natur.273..450A.

Publication Type

Article

Authors

Apparao, K.M.V. and Bignami, G.F. and Maraschi, L. and Helmken, H. and Margon, B. and Hjellming, R. and Bradt, H.V. and Dower, R.G.

Subjects

astrometry, ENERGY SPECTRA, EXTRAGALACTIC RADIO SOURCES, QUASARS, RADIO ASTRONOMY, SEYFERT GALAXIES, Spectrophotometry, ULTRAVIOLET SPECTRA, VISUAL PHOTOMETRY, X RAY SOURCES

Date

1978

Title

NGC 2110 – an X-ray/radio galaxy with elliptical morphology

Publication

Astrophysical Journal, Letters December 1978. 1978ApJ...226L.111B.

Publication Type

Article

Authors

Bradt, H.V. and Burke, B.F. and Canizares, C.R. and Greenfield, P.E. and Kelley, R.L. and McClintock, J.E. and van Paradijs, J. and Koski, A.T.

Subjects

ELLIPTICAL GALAXIES, EMISSION SPECTRA, GALACTIC NUCLEI, MORPHOLOGY, NONTHERMAL RADIATION, RADIO GALAXIES, RED SHIFT, SEYFERT GALAXIES, X RAY SOURCES

Date

1978

Title

Identification of 4U 1651+39 with the BL Lacertae object Markarian 501 with the modulation collimator on HEAO 1

Publication

Astrophysical Journal, Letters September 1978. 1978ApJ...224L.103S.

Publication Type

Article

Authors

Schwartz, D.A. and Griffiths, R.E. and Gursky, H. and Schwarz, J. and Bradt, H.V. and Doxsey, R.E. and Johnston, M.D.

Subjects

COLLIMATORS, COMPTON EFFECT, ELECTROMAGNETIC SPECTRA, GALACTIC NUCLEI, GALACTIC RADIATION, HEAO, QUASARS, SEYFERT GALAXIES, X RAY SOURCES

Date

1978

Title

X-ray quasars

Publication

1980NYASA.336...59B.

Publication Type

Inproceedings

Authors

Subjects

GALACTIC NUCLEI, GAMMA RAY SPECTRA, INFRARED SPECTRA, LIGHT (VISIBLE RADIATION), MILKY WAY GALAXY, QUASARS, RADIO ASTRONOMY, RADIO SPECTRA, SEYFERT GALAXIES, STELLAR SPECTRA, ULTRAVIOLET SPECTRA, VARIABILITY, X RAY SOURCES, X-ray spectra

Date

1980

Title

Seyfert Type 1 galaxies observed with the HEAO 1 scanning modulation collimator

Publication

Astrophysical Journal January 1980. 1980ApJ...235..355D.

Publication Type

Article

Authors

Dower, R.G. and Bradt, H.V. and Doxsey, R.E. and Johnston, M.D. and Griffiths, R.E.

Subjects

COLLIMATORS, HEAO 1, RED SHIFT, SCANNERS, SEYFERT GALAXIES, X RAY SOURCES

Date

1980

Title

3C 273 – X-ray variability, spectrum, and position

Publication

Astrophysical Journal, Letters May 1979. 1979ApJ...230L...5B.

Publication Type

Article

Authors

Bradt, H.V. and Doxsey, R.E. and Johnston, M.D. and Schwartz, D.A. and Liller, W. and Burkhead, M.S. and Dent, W.A. and Smith, A.G.

Subjects

COLLIMATORS, EMITTANCE, GALACTIC NUCLEI, HEAO 1, POSITION (LOCATION), QUASARS, RADIANT FLUX DENSITY, SEYFERT GALAXIES, VARIABILITY, X RAY ASTRONOMY, X RAY SOURCES, X-ray spectroscopy

Date

1979

Title

The discovery of eight bright active galactic nuclei observed with the HEAO 1 scanning modulation collimator

Publication

Astrophysical Journal February 1986. 1986ApJ...301..742R.

Publication Type

Article

Authors

Remillard, R.A. and Bradt, H.V. and Buckley, D.A.H. and Roberts, W. and Schwartz, D.A. and Tuohy, I.R. and Wood, K.

Subjects

ACTIVE GALACTIC NUCLEI, ASTRONOMICAL SPECTROSCOPY, COLLIMATORS, EMISSION SPECTRA, H LINES, HEAO 1, QUASARS, RED SHIFT, SEYFERT GALAXIES, SPACEBORNE ASTRONOMY, VISIBLE SPECTRUM, X RAY SOURCES

Date

1986

Title

Recent optical identifications of HEAO-1 X-ray sources

Publication

Advances in Space Research January 1985. 1985AdSpR...5..137S.

Publication Type

Article

Authors

Schwartz, D.A. and Roberts, W. and Bradt, H. and Remillard, R. and Buckley, D.

Subjects

ACTIVE GALACTIC NUCLEI, ASTRONOMICAL PHOTOGRAPHY, COLLIMATORS, GALACTIC NUCLEI, HEAO 1, LIGHT (VISIBLE RADIATION), SEYFERT GALAXIES, SPECTRUM ANALYSIS, WHITE DWARF STARS, X RAY SOURCES

Date

1985

Title

Twenty-two emission-line AGNs from the HEAO-1 X-ray survey

Publication

Astronomical Journal June 1993. 1993AJ....105.2079R.

Publication Type

Article

Authors

Remillard, R.A. and Bradt, H.V.D. and Brissenden, R.J.V. and Buckley, D.A.H. and Roberts, W. and Schwartz, D.A. and Stroozas, B.A. and Tuohy, I.R.

Subjects

ACTIVE GALACTIC NUCLEI, EMISSION SPECTRA, HEAO 1, QUASARS, SEYFERT GALAXIES, SKY SURVEYS (ASTRONOMY), X RAY SOURCES

Date

1993

Title

X-ray studies of Seyfert galaxies and quasars

Publication

January 1986. 1986IAUS..119..253C.

Publication Type

Inproceedings

Authors

Canizares, C.R. and Kriss, G.A. and Kruper, J. and Urry, C.M.

Subjects

ASTRONOMICAL SPECTROSCOPY, GALACTIC NUCLEI, HEAO 2, QUASARS, RED SHIFT, SEYFERT GALAXIES, STATISTICAL ANALYSIS, VISIBLE SPECTRUM, X-ray spectra

Date

1986