Zobrazeno 1 - 10
of 818
pro vyhledávání: '"McDowell, J A"'
Autor:
Lawrence, A., Rawls, M. L., Jah, M., Boley, A., Di Vruno, F., Garrington, S., Kramer, M., Lawler, S., Lowenthal, J., McDowell, J., McCaughrean, M.
The shell bound by the Karman line at a height of 80 to 100km above the Earth's surface, and Geosynchronous Orbit, at 36,000km, is defined as the orbital space surrounding the Earth. It is within this region, and especially in Low Earth Orbit (LEO),
Externí odkaz:
http://arxiv.org/abs/2204.10025
Autor:
McDowell, J. J, Riley, Steven
Publikováno v:
Behavior and Philosophy, 2020 Jan 01. 48, 18-24.
Externí odkaz:
https://www.jstor.org/stable/27134635
Autor:
Klapes, Bryan1,2 (AUTHOR) bk0572@pcom.edu, McDowell, J. J1 (AUTHOR)
Publikováno v:
Psychological Record. Jun2023, Vol. 73 Issue 2, p333-337. 5p.
Akademický článek
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Publikováno v:
Astrophys.J.705:1632-1636,2009
X-ray sources in spiral galaxies can be approximately classified into bulge and disk populations. The bulge (or hard) sources have X-ray colors which are consistent with Low Mass X-ray Binaries (LMXB) but the the disk sources have softer colors sugge
Externí odkaz:
http://arxiv.org/abs/0909.0741
Publikováno v:
Astrophys.J.690:128-142,2009
We present a system of X-ray photometry for the Chandra satellite. X-ray photometry can be a powerful tool to obtain flux estimates, hardness ratios, and colors unbiased by assumptions about spectral shape and independent of temporal and spatial chan
Externí odkaz:
http://arxiv.org/abs/0808.3718
In this paper we investigate the X-ray spectra and X-ray spectral variability of compact X-ray sources for 3 Chandra observations of the Local Group galaxy M33. The observations are centered on the nucleus and the star forming region NGC 604. In the
Externí odkaz:
http://arxiv.org/abs/0706.3927
In this paper we present the source list for 3 Chandra observations of the Local Group galaxy M33. The observations are centered on the nucleus and on the star forming region NGC 604. We detect a total of 261 sources in an area of \~0.2 square degree
Externí odkaz:
http://arxiv.org/abs/astro-ph/0506353
Autor:
Baldi, A., Fabbiano, G., Pellegrini, S., Siemiginowska, A., Elvis, M., Zezas, A., McDowell, J. C.
We report the results of the Chandra ACIS-S observations of the elliptical galaxy NGC 821, which harbors a supermassive nuclear black hole (of 3.5x10^7 solar masses), but does not show sign of AGN activity. A small, 8.5" long (~1 kpc at the galaxy's
Externí odkaz:
http://arxiv.org/abs/astro-ph/0410169
Autor:
Fabbiano, G., Baldi, A., Pellegrini, S., Siemiginowska, A., Elvis, M., Zezas, A., McDowell, J.
We report the results of the {\it Chandra} ACIS-S observations of the elliptical galaxy NGC 821, which harbors a supermassive nuclear black hole (of $3.5 \times 10^7 M_{\odot}$), but does not show sign of AGN activity. A small, 8.5$^{\prime\prime}$ l
Externí odkaz:
http://arxiv.org/abs/astro-ph/0405358