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HSTSTIS Spectroscopy of the Triple Nucleus of M31: Two Nested Disks in Keplerian Rotation around a Supermassive Black Hole

Autor: John Kormendy, Bruce E. Woodgate, Jens Thomas, Ralf Bender, Donna Weistrop, Charles H. Nelson, Tod R. Lauer, Theodore R. Gull, J. B. Hutchings, Anthony C. Danks, Douglas O. Richstone, Richard F. Green, Gary Bower, Charles L. Joseph, M. E. Kaiser

Publikováno v: The Astrophysical Journal. 631:280-300

We present HST spectroscopy of the nucleus of M31 obtained with STIS. Spectra taken around the CaT lines at 8500 see only the red giants in the double bright- ness peaks P1 and P2. In contrast, spectra taken at 3600-5100 A are sensitive to the tiny b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d8ab3b74e451a0afd045ebfcf3f42ac
https://doi.org/10.1086/432434

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Mapping the Kinematics of the Narrow-Line Region in the Seyfert Galaxy NGC 4151

Autor: D. Weistrop, M. E. Kaiser, V. Das, Steven B. Kraemer, J. B. Hutchings, D. M. Crenshaw, Charles H. Nelson, Rajesh P. Deo, Theodore R. Gull

Publikováno v: The Astronomical Journal. 130:945-956

Using The Hubble Space Telescope's Space Telescope Imaging Spectrograph HST's STIS, observations of the OIII emission from the narrow-line region (NLR) of NGC 4151 were obtained and radial velocities determined. Five orbits of HST time were used to o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d544473cfb48a4c6b11a1dc763e14ba
https://doi.org/10.1086/432255

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Evidence for an Accelerating Wind as the Broad‐Line Region in NGC 3516

Autor: Gerard A. Kriss, Anuradha Koratkar, Richard F. Green, W. Zheng, J. B. Hutchings, M. E. Kaiser, Michael S. Brotherton

Publikováno v: The Astrophysical Journal. 559:173-180

Spectroscopic data in wavelengths 900--3000A have been obtained in a low flux state of the nucleus of the Seyfert 1 galaxy NGC 3516. The line profiles show P Cygni characteristics, particularly in O VI 1032A, and are compared with data from an earlie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f89350f95dec8c8552dd38abcb951239
https://doi.org/10.1086/322329

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Space Telescope Imaging Spectrograph Echelle Observations of the Seyfert Galaxy NGC 4151: Physical Conditions in the Ultraviolet Absorbers

Autor: S. B. Kraemer, D. M. Crenshaw, J. B. Hutchings, I. M. George, A. C. Danks, T. R. Gull, M. E. Kaiser, C. H. Nelson, D. Weistrop, G. L. Vieira

Publikováno v: The Astrophysical Journal. 551:671-686

We have examined the physical conditions in intrinsic UV-absorbing gas in the Seyfert galaxy NGC 4151, using echelle spectra obtained with the Space Telescope Imaging Spectrograph (STIS). We confirm the presence of the kinematic components detected i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a3fe936077baa793460fd0c5a001964
https://doi.org/10.1086/320244

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Kinematics of the Nuclear Ionized Gas in the Radio Galaxy M84 (NGC 4374)

Publikováno v: The Astrophysical Journal. 492:L111-L114

We present optical long-slit spectroscopy of the nucleus of the nearby radio galaxy M84 (NGC 4374 = 3C 272.1) obtained with the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope (HST). Our spectra reveal that the nuclear g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96e8b1686e5f2e9acba225a73b624895
https://doi.org/10.1086/311109

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