Zobrazeno 1 - 10
of 958
pro vyhledávání: '"Delaney, T."'
Autor:
Hawkes, Jason E., Al-Saedy, Miriam, Bouché, Nicole, Al-Saedy, Salsabeal, Drew, Delaney T., Song, Eingun James
Publikováno v:
In Dermatologic Clinics July 2024 42(3):365-375
Synchrotron radiation from supernova remnants are caused by electrons accelerated through diffusive shock acceleration (DSA). The standard DSA theory predicts an electron spectral index of $p=2$, corresponding to a radio spectral index of $\alpha=-0.
Externí odkaz:
http://arxiv.org/abs/2005.12677
Autor:
Allen, G. E., Chow, K., DeLaney, T., Filipovic, M. D., Houck, J. C., Pannuti, T. G., Stage, M. D.
An analysis of Chandra ACIS data for two relatively bright and narrow portions of the northwestern rim of G266.2-1.2 (a.k.a. RX J0852.0-4622 or Vela Jr.) reveal evidence of a radial displacement of 2.40 +/- 0.56 arcsec between 2003 and 2008. The corr
Externí odkaz:
http://arxiv.org/abs/1410.7435
Autor:
Gomez, H. L., Dunne, L., Ivison, R., Reynoso, E. M., Thompson, M. A., Sibthorpe, B., Eales, S. A., DeLaney, T. M., Maddox, S., Isaak, K.
Whether or not supernovae contribute significantly to the overall dust budget is a controversial subject. Submillimetre (submm) observations, sensitive to cold dust, have shown an excess at 450 and 850 microns in young remnants Cassiopeia A (Cas A) a
Externí odkaz:
http://arxiv.org/abs/0905.2564
Autor:
Rho, J., Reach, W. T., Tappe, A., Rudnick, L., Kozasa, T., Hwang, U., Andersen, M., Gomez, H., DeLaney, T., Dunne, L., Slavin, J.
We present dust features and masses observed in young supernova remnants (SNRs) with Spitzer IRS mapping and staring observations of four youngest supernova remnants: SNR 1E102.2-7219 (E0102) in the SMC, Cas A and G11.2-0.3 in our Galaxy, and N132D i
Externí odkaz:
http://arxiv.org/abs/0901.1699
Autor:
Dunne, L., Maddox, S. J., Ivison, R. J., Rudnick, L., DeLaney, T. A., Matthews, B. C., Gomez, H. L., Eales, S. A., Crowe, C. M., Dye, S.
If Type-II supernovae - the evolutionary end points of short-lived, massive stars - produce a significant quantity of dust (>0.1 M_sun) then they can explain the rest-frame far-infrared emission seen in galaxies and quasars in the first Gyr of the Un
Externí odkaz:
http://arxiv.org/abs/0809.0887
Freshly Formed Dust in the Cassiopeia A Supernova Remnant as Revealed by the Spitzer Space Telescope
Autor:
Rho, J., Kozasa, T., Reach, W. T., Rudnick, L., DeLaney, T., Smith, J. D., Ennis, J. A., Gomez, H., Tappe, A.
We performed Spitzer Infrared Spectrograph mapping observations covering nearly the entire extent of the Cassiopeia A supernova remnant (SNR), producing mid-infrared (5.5-35 micron) spectra every 5-10". Gas lines of Ar, Ne, O, Si, S and Fe, and dust
Externí odkaz:
http://arxiv.org/abs/0709.2880
Chandra High-Energy Transmission Grating (HETG) X-ray spectra are extracted from 17 bright, narrow regions of Cas A and provide unique measurements of their kinematic and plasma states. From the dominant emission lines, e.g. He-like Si, we derive acc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611908
Autor:
Ennis, J. A., Rudnick, L., Reach, W. T., Smith, J. D., Rho, J., DeLaney, T., Gomez, H., Kozasa, T.
Publikováno v:
Astrophys.J.652:376-386,2006
We present Spitzer IRAC images, along with representative 5.27 to 38.5 micron IRS spectra of the Cassiopeia A supernova remnant. We find that various IRAC channels are each most sensitive to a different spectral and physical component. Channel 1 (3.6
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610838
Publikováno v:
Astrophys.J.640:929-940,2006
We use new and archival Chandra and ROSAT data to study the time variability of the X-ray emission from the pulsar wind nebula (PWN) powered by PSR B1509-58 on timescales of one week to twelve years. There is variability in the size, number, and brig
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512047