Zobrazeno 1 - 10
of 393
pro vyhledávání: '"Goss, W. P."'
Autor:
Demorest, P. B., Goss, W. M.
It has now been just over four decades since the first discovery of a millisecond spin period pulsar (MSP), B1937+21, by Don Backer and collaborators in late 1982. This finding of an entirely new class of astronomical object revolutionized pulsar ast
Externí odkaz:
http://arxiv.org/abs/2407.18194
Using the JVLA, we explored the Galactic center (GC) with a resolution of 0.05" at 33.0 and 44.6 GHz. We detected 64 hyper-compact radio sources (HCRs) in the central parsec. The dense group of HCRs can be divided into three spectral types: 38 steep-
Externí odkaz:
http://arxiv.org/abs/2202.05300
Autor:
Murray, Claire E., Stanimirović, Snežana, Heiles, Carl, Dickey, John M., McClure-Griffiths, N. M., Lee, M. -Y., Goss, W. M., Killerby-Smith, Nicholas
Tracing the transition between the diffuse atomic interstellar medium (ISM) and cold, dense gas is crucial for deciphering the star formation cycle in galaxies. Here we present MACH, a new survey of cold neutral hydrogen (HI) absorption at $21\rm\,cm
Externí odkaz:
http://arxiv.org/abs/2106.15614
Using JVLA data obtained from high-resolution observations at 5.5 GHz at multiple epochs in 2014 and 2019, we have detected a population of radio variables and transients in the radio bright zone at the Galactic center. With observations covering a s
Externí odkaz:
http://arxiv.org/abs/2011.01368
The radio bright zone (RBZ) at the Galactic center has been observed with the JVLA in the A, B and C array configurations at 5.5 and 9 GHz. With a procedure for high-dynamic range imaging developed on CASA, we constructed deep images a resolution up
Externí odkaz:
http://arxiv.org/abs/2010.12352
Autor:
De Pree, C. G., Wilner, D. J., Kristensen, L. E., Galván-Madrid, R., Goss, W. M., Klessen, R. S., Mac Low, M. -M., Peters, T., Robinson, A., Sloman, S., Rao, M.
We present new Jansky Very Large Array (VLA) images of the central region of the W49A star-forming region at 3.6~cm and at 7~mm at resolutions of 0\farcs15 (1650 au) and 0\farcs04 (440 au), respectively. The 3.6~cm data reveal new morphological detai
Externí odkaz:
http://arxiv.org/abs/2010.04656
Using JVLA data of Sgr A* and NRAO 530 (as a calibrator) at 5.5, 9 and 33 GHz, we developed a procedure for the reduction of wideband data. We have demonstrated that, correcting for residual interferometer errors such as residual delays, astronomers
Externí odkaz:
http://arxiv.org/abs/1903.08586
Autor:
Deller, A. T., Goss, W. M., Brisken, W. F., Chatterjee, S., Cordes, J. M., Janssen, G. H., Kovalev, Y. Y., Lazio, T. J. W., Petrov, L., Stappers, B. W., Lyne, A.
Publikováno v:
ApJ 875 (2019) 100
We present the results of PSR$\pi$, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with
Externí odkaz:
http://arxiv.org/abs/1808.09046
Autor:
De Pree, C. G., Galván-Madrid, R., Goss, W. M., Klessen, R. S., Mac Low, M. -M., Peters, T., Wilner, D., Bates, J., Melo, T., Presler-Marshall, B., Webb-Forgus, R.
A number of ultracompact H II regions in Galactic star forming environments have been observed to vary significantly in radio flux density on timescales of 10-20 years. Theory predicted that such variations should occur when the accretion flow that f
Externí odkaz:
http://arxiv.org/abs/1807.10669
Autor:
Murray, Claire E., Stanimirovic, Snezana, Goss, W. M., Heiles, Carl, Dickey, John M., Babler, Brian, Kim, Chang-Goo
We present 21-cm Spectral Line Observations of Neutral Gas with the VLA (21-SPONGE), a Karl G. Jansky Very Large Array (VLA) large project (~600 hours) for measuring the physical properties of Galactic neutral hydrogen (HI). 21-SPONGE is distinguishe
Externí odkaz:
http://arxiv.org/abs/1806.06065