Zobrazeno 1 - 10
of 77
pro vyhledávání: '"D. Michael Crenshaw"'
Autor:
Julia Falcone, D. Michael Crenshaw, Travis C. Fischer, Beena Meena, Mitchell Revalski, Maura Kathleen Shea, Rogemar A. Riffel, Zo Chapman, Nicolas Ferree, Jacob Tutterow, Madeline Davis
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 17 (2024)
We have characterized the ionized, neutral, and warm molecular gas kinematics in the Seyfert 1 galaxy NGC 3227 using observations from the Hubble Space Telescope Space Telescope Imaging Spectrograph, Apache Point Observatory’s Kitt Peak Ohio State
Externí odkaz:
https://doaj.org/article/26698a2c086b41e79719f9abb5da8a1f
Autor:
Travis C. Fischer, Megan C. Johnson, Nathan J. Secrest, D. Michael Crenshaw, Steven B. Kraemer
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 87 (2023)
We present recent Very Long Baseline Array (VLBA) 5 GHz radio observations of the nearby, luminous Seyfert 2 galaxy NGC 1068 for comparison to similar VLBA observations made on 1997 April 26. By cross-correlating the positions of emitting regions acr
Externí odkaz:
https://doaj.org/article/c9425dc8800848ce8711d4446f16ab95
Autor:
W. Peter Maksym, Martin Elvis, Giuseppina Fabbiano, Anna Trindade Falcão, Steven B. Kraemer, Travis C. Fischer, D. Michael Crenshaw, Thaisa Storchi-Bergmann
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 146 (2023)
We present Chandra ACIS imaging spectroscopy of the nucleus of the Seyfert 2 Galaxy Mrk 34. We identify spatially and spectrally resolved features in the band that includes Fe K α , Fe xxv, and Fe xxvi . These features suggest high-velocity (≳15,0
Externí odkaz:
https://doaj.org/article/a1b5500f072846bc95a4c78e92442736
Autor:
Beena Meena, D. Michael Crenshaw, Henrique R. Schmitt, Mitchell Revalski, Zo Chapman, Travis C. Fischer, Steven B. Kraemer, Justin H. Robinson, Julia Falcone, Garrett E. Polack
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 98 (2023)
We present dynamical models of the narrow-line region (NLR) outflows in the nearby Seyfert galaxies Mrk 3, Mrk 78, NGC 1068, and NGC 4151 using observations from the Hubble Space Telescope and Apache Point Observatory. We employ long-slit spectroscop
Externí odkaz:
https://doaj.org/article/c1dd05c108fb48e394f145f3d4277b5f
Autor:
Mitchell Revalski, D. Michael Crenshaw, Marc Rafelski, Steven B. Kraemer, Garrett E. Polack, Anna Trindade Falcão, Travis C. Fischer, Beena Meena, Francisco Martinez, Henrique R. Schmitt, Nicholas R. Collins, Julia Falcone
Active galactic nuclei (AGN) can launch outflows of ionized gas that may influence galaxy evolution, and quantifying their full impact requires spatially resolved measurements of the gas masses, velocities, and radial extents. We previously reported
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecfec0e9842c7feb9ef8469d7bf09da0
http://arxiv.org/abs/2203.07387
http://arxiv.org/abs/2203.07387
Autor:
Thaisa Storchi-Bergmann, Rogemar A. Riffel, Dzhuliya Dashtamirova, G. E. Polack, H. R. Schmitt, S. B. Kraemer, C. L. Gnilka, Francisco Martínez, Mitchell Revalski, Travis Fischer, D. Michael Crenshaw, Beena Meena, Camilo Machuca
Publikováno v:
Proceedings of the International Astronomical Union. 15:318-322
We investigate the processes of active galactic nuclei (AGN) feeding and feedback in the narrow line regions (NLRs) and host galaxies of nearby AGN through spatially resolved spectroscopy with the Gemini Near-Infrared Integral Field Spectrograph (NIF
Autor:
D. Lena, Neil M. Nagar, Travis Fischer, Allan Schnorr-Müller, C. Finlez, D. Michael Crenshaw, Pamela Soto-Pinto, Venkatessh Ramakrishnan, V. Firpo, Rogemar A. Riffel, Martin Elvis, Thaisa Storchi-Bergmann, Dania Muñoz-Vergara, Henrique R. Schmitt, R. Slater, Pedro K. Humire, Andrew Robinson, Steven B. Kraemer
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 487, 3679-3692
Monthly Notices of the Royal Astronomical Society, 487, 3, pp. 3679-3692
Monthly Notices of the Royal Astronomical Society, 487, 3, pp. 3679-3692
As part of a high-resolution observational study of feeding and feedback processes occurring in the vicinity of the active galactic nucleus in 40 galaxies, we observed the inner 3${^{\prime\prime}_{.}}$5 × 5 arcsec of the nearby spiral and Seyfert 2
Autor:
D. Michael Crenshaw, Allan Schnorr-Müller, Steven B. Kraemer, R. Slater, Henrique R. Schmitt, Travis Fischer, Pedro K. Humire, Thaisa Storchi-Bergmann, Pamela Soto-Pinto, C. Finlez, Venkatessh Ramakrishnan, Martin Elvis, Dania Muñoz-Vergara, Rogemar A. Riffel, Andrew Robinson, Neil M. Nagar, D. Lena
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 489, 4111-4124
Monthly Notices of the Royal Astronomical Society, 489, 3, pp. 4111-4124
Monthly Notices of the Royal Astronomical Society, 489, 3, pp. 4111-4124
We present two-dimensional ionized gas and stellar kinematics in the inner 1.4 × 1.9 kpc2 of the Seyfert 2 galaxy ESO 153-G20 obtained with the Gemini-South/Gemini multi-object spectrograph integral field unit (GMOS-IFU) at a spatial resolution of ~
Autor:
Beena Meena, D. Michael Crenshaw, Henrique R. Schmitt, Mitchell Revalski, Travis C. Fischer, Garrett E. Polack, Steven B. Kraemer, Dzhuliya Dashtamirova
We explore the properties of ionized gas in the nuclear and circumnuclear environment of the narrow-line Seyfert 1 galaxy NGC 4051 using spectroscopic and imaging observations from the Hubble Space Telescope (HST) and Apache Point Observatory (APO)'s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::762a6a882886976cec1321cd558fcbf6
http://arxiv.org/abs/2103.12081
http://arxiv.org/abs/2103.12081
Autor:
Michael Koss, D. Michael Crenshaw, Jane R. Rigby, Krista Lynne Smith, Richard F. Mushotzky, Kirsten L. Larson, Henrique R. Schmitt, Vivian U, S. B. Kraemer, Travis C. Fischer
We present optical SuperNova Integral Field Spectrograph (SNIFS) integral field spectroscopy, Hubble Space Telescope optical imaging, Chandra X-ray imaging, and Very Large Array radio interferometry of the merging galaxy 2MASX J04234080+0408017, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::529e4453b5fa3a16cb0c4d007a02f738
https://resolver.caltech.edu/CaltechAUTHORS:20191219-112735749
https://resolver.caltech.edu/CaltechAUTHORS:20191219-112735749