Zobrazeno 1 - 10
of 20
pro vyhledávání: '"R. P. Dudik"'
Autor:
Fabien Grisé, R. P. Dudik, C. T. Berghea, R. Pagano, Lisa M. Winter, A. Singh, Timothy P.L. Roberts
Publikováno v:
The astrophysical journal, 2016, Vol.831(1), pp.88 [Peer Reviewed Journal]
We present Spitzer Infrared Array Camera (IRAC) photometric observations of the Ultra-luminous X-ray Source (ULX, X-1) in Holmberg IX. We construct a spectral energy distribution (SED) for Holmberg IX X-1 based on published optical, UV and X-ray data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7080788cf5682ea320d924c8634d0d85
http://dro.dur.ac.uk/20359/1/20359.pdf
http://dro.dur.ac.uk/20359/1/20359.pdf
Publikováno v:
The Astrophysical Journal. 708:364-374
This is the second of two papers examining Spitzer Infrared Spectrograph (IRS) observations of the ultraluminous X-ray source (ULX) in Holmberg II. Here we perform detailed photoionization modeling of the infrared lines. Our analysis suggests that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6819d6fdf59f226d1d67541bafbf44e
https://doi.org/10.1088/0004-637x/708/1/364
https://doi.org/10.1088/0004-637x/708/1/364
Publikováno v:
The Astrophysical Journal. 691:1501-1524
We have conducted a comprehensive mid-IR spectroscopic investigation of 67 Low Ionization Nuclear Emission Line Regions (LINERs) using archival observations from the high resolution modules of the Infrared Spectrograph on board the Spitzer Space Tele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf789b219900f84824f679dbeab32f77
https://doi.org/10.1088/0004-637x/691/2/1501
https://doi.org/10.1088/0004-637x/691/2/1501
Publikováno v:
The Astrophysical Journal. 677:926-942
We report the discovery using Spitzers high resolution spectrograph of 7 Active Galactic Nuclei (AGN) in a sample of 32 late-type galaxies that show no definitive signatures of AGN in their optical spectra. Our observations suggest that the AGN detec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67e22ec61033cf9b39d5bcd50b7f264a
https://doi.org/10.1086/529014
https://doi.org/10.1086/529014
Publikováno v:
The Astrophysical Journal. 663:L9-L12
We report the discovery of an Active Galactic Nucleus (AGN) in the nearby SAd galaxy NGC 3621 using Spitzer high spectral resolution observations. These observations reveal the presence of [NeV] 14 um and 24 um emission which is centrally concentrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfd1b2f9377544dd5b939cb29e8b5b01
https://doi.org/10.1086/519995
https://doi.org/10.1086/519995
Publikováno v:
The Astrophysical Journal. 641:795-800
Archival observations of 18 starburst galaxies that span a wide range in metallicity reveal for the first time a correlation between the ratio of emission line fluxes of [FeII] at 26 microns and [NeII] at 12.8 microns and the 7.7 micron PAH strength,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84ded5130771ad43dde4b96221a55eb0
https://doi.org/10.1086/500529
https://doi.org/10.1086/500529
Publikováno v:
The Astrophysical Journal. 620:113-125
We present results from a high resolution X-ray imaging study of nearby LINERs observed by Chandra. This study complements and extends previous X-ray studies of LINERs, focusing on the under-explored population of nearby dust-enshrouded infrared-brig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::019e7cd6ada62757be6b0a702e453885
https://doi.org/10.1086/426856
https://doi.org/10.1086/426856
Publikováno v:
The Astrophysical Journal. 844:90
We report the serendipitous discovery of the first gravitationally lensed quasar candidate from Pan-STARRS. The grizy images reveal four point-like images with magnitudes between 14.9 mag and 18.1 mag. The colors of the point sources are similar, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a66157897916686fa33aee4fbb26bc0
https://doi.org/10.3847/1538-4357/aa7aa6
https://doi.org/10.3847/1538-4357/aa7aa6
We have used XMM-Newton's Optical Monitor (OM) images to study the local environment of a sample of 27 Ultraluminous X-ray Sources (ULXs) in nearby galaxies. UVW1 fluxes were extracted from 100 pc regions centered on the ULX positions. We find that a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58b19f474dbe2b245bcf0033fd1a3c5a
http://arxiv.org/abs/1403.2758
http://arxiv.org/abs/1403.2758
We present the first Spitzer Infrared Spectrograph (IRS) observations of the [O IV] 25.89 $��$m emission line detected from the ultraluminous X-ray source (ULX) in Holmberg II. This line is a well established signature of high ionization, usually
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e29da1061ab8b762c651725c754a230a