Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Kraemer, Steven"'
Autor:
Polack, Garrett E., Revalski, Mitchell, Crenshaw, D. Michael, Fischer, Travis C., Schmitt, Henrique R., Kraemer, Steven B., Meena, Beena, Rafelski, Marc
Outflowing gas from supermassive black holes in the centers of active galaxies has been postulated as a major contributor to galactic evolution. To explore the interaction between narrow-line region (NLR) outflows and their host galaxies, we use Hubb
Externí odkaz:
http://arxiv.org/abs/2407.17550
Autor:
Fischer, Travis C., Johnson, Megan C., Secrest, Nathan J., Crenshaw, D. Michael, Kraemer, Steven B.
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:
http://arxiv.org/abs/2306.15047
Autor:
Meena, Beena, Crenshaw, D. Michael, Schmitt, Henrique R., Revalski, Mitchell, Chapman, Zo, Fischer, Travis C., Kraemer, Steven B., Robinson, Justin H., Falcone, Julia, Polack, Garrett E.
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:
http://arxiv.org/abs/2212.02513
Autor:
Maksym, W. Peter, Elvis, Martin, Fabbiano, Giuseppina, Trindade-Falcão, Anna, Kraemer, Steven B., Fischer, Travis C., Crenshaw, D. Michael, Storchi-Bergmann, Thaisa
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$\alpha$, Fe XXV and Fe XXVI. These features indicate high-velocity ($\
Externí odkaz:
http://arxiv.org/abs/2209.14326
Autor:
Revalski, Mitchell, Crenshaw, D. Michael, Rafelski, Marc, Kraemer, Steven B., Polack, Garrett E., Falcão, Anna Trindade, Fischer, Travis C., Meena, Beena, Martinez, Francisco, Schmitt, Henrique R., Collins, Nicholas R., Falcone, Julia
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:
http://arxiv.org/abs/2203.07387
Autor:
Meena, Beena, Crenshaw, D. Michael, Schmitt, Henrique R., Revalski, Mitchell, Fischer, Travis C., Polack, Garrett E., Kraemer, Steven B., Dashtamirova, Dzhuliya
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:
http://arxiv.org/abs/2103.12081
Autor:
Revalski, Mitchell, Meena, Beena, Martinez, Francisco, Polack, Garrett E., Crenshaw, D. Michael, Kraemer, Steven B., Collins, Nicholas R., Fischer, Travis C., Schmitt, Henrique R., Schmidt, Judy, Maksym, W. Peter, Rafelski, Marc
Outflows of ionized gas driven by active galactic nuclei (AGN) may significantly impact the evolution of their host galaxies. However, determining the energetics of these outflows is difficult with spatially unresolved observations that are subject t
Externí odkaz:
http://arxiv.org/abs/2101.06270
Autor:
Barry, Richard K., Babu, Jogesh G., Baker, John G., Feigelson, Eric D., Kaur, Amanpreet, Kogut, Alan J., Kraemer, Steven B., Mason, James P., Mehrotra, Piyush, Olmschenk, Gregory, Schnittman, Jeremy D., Stokholm, Amalie, Switzer, Eric R., Thomas, Brian A., Walker, Raymond J.
Experience suggests that structural issues in how institutional Astrophysics approaches data-driven science and the development of discovery technology may be hampering the community's ability to respond effectively to a rapidly changing environment
Externí odkaz:
http://arxiv.org/abs/1907.10558
Autor:
Storchi-Bergmann, Thaisa, de Oliveira, Bruno Dall'Agnol, Micchi, Luis Felipe Longo, Schmitt, Henrique Roberto, Fischer, Travis Cody, Kraemer, Steven, Crenshaw, Michael, Maksym, Peter, Elvis, Martin, Fabbiano, Giuseppina, Colina, Luis
We have used narrow-band [OIII]$\lambda\lambda$4959,5007 and H$\alpha$+[NII]$\lambda\lambda6548,84$ Hubble Space Telescope (HST) images of 9 luminous (L[OIII]$>10^{42}$erg s$^{-1}$) type 2 QSOs with redshifts $0.1
Externí odkaz:
http://arxiv.org/abs/1810.06246
Autor:
Müller, Heidi, Zwingmann, Christian, Krämer, Steven, Hauch, Holger, Sibelius, Ulf, Carrasco, Anna Pedrosa, Berthold, Daniel
Publikováno v:
In Zeitschrift fuer Evidenz, Fortbildung und Qualitaet im Gesundheitswesen February 2022 168:75-81
