Zobrazeno 1 - 10
of 461
pro vyhledávání: '"P A Woudt"'
Autor:
Gasealahwe, K. V. S., Monageng, I. M., Fender, R. P., Woudt, P. A., Hughes, A. K., Motta, S. E., Eijnden, J. van den, Saikia, P., Tremou, E.
XTE J1701-462 is a neutron star low mass X-ray binary (NS LMXB) discovered in 2006 as the first system to demonstrate unambiguously that the `Atoll' and `Z' classes of accreting neutron stars are separated by accretion rate. Radio observations during
Externí odkaz:
http://arxiv.org/abs/2407.21509
Automated Detection of Satellite Trails in Ground-Based Observations Using U-Net and Hough Transform
Autor:
Stoppa, F., Groot, P. J., Stuik, R., Vreeswijk, P., Bloemen, S., Pieterse, D. L. A., Woudt, P. A.
The expansion of satellite constellations poses a significant challenge to optical ground-based astronomical observations, as satellite trails degrade observational data and compromise research quality. Addressing these challenges requires developing
Externí odkaz:
http://arxiv.org/abs/2407.19461
Autor:
Chastain, S. I., van der Horst, A. J., Anderson, G. E., Rhodes, L., d'Antonio, D., Bell, M. E., Fender, R. P., Hancock, P. J., Horesh, A., Kouveliotou, C., Mooley, K. P., Rowlinson, A., Vergani, S. D., Wijers, R. A. M. J., Woudt, P. A.
Short gamma-ray bursts (GRBs) are explosive transients caused by binary mergers of compact objects containing at least one neutron star. Multi-wavelength afterglow observations provide constraints on the physical parameters of the jet, its surroundin
Externí odkaz:
http://arxiv.org/abs/2407.11883
Autor:
Lico, R., Giroletti, M., Munari, U., O'Brien, T. J., Marcote, B., Williams, D. R. A., Yang, J., Veres, P., Woudt, P.
The recurrent and symbiotic nova RS Ophiuchi (RSOph) underwent a new outburst phase during August 2021, about 15 years after the last event occurred in 2006. This represents the first nova event ever detected at very-high energies (VHE, E>100\,GeV),
Externí odkaz:
http://arxiv.org/abs/2407.05794
Autor:
de Blok, W. J. G., Healy, J., Maccagni, F. M., Pisano, D. J., Bosma, A., English, J., Jarrett, T., Marasco, A., Meurer, G. R., Veronese, S., Bigiel, F., Chemin, L., Fraternali, F., Holwerda, B. W., Kamphuis, P., Klöckner, H. R., Kleiner, D., Leroy, A. K., Mogotsi, M., Oman, K. A., Schinnerer, E., Verdes-Montenegro, L., Westmeier, T., Wong, O. I., Zabel, N., Amram, P., Carignan, C., Combes, F., Brinks, E., Dettmar, R. J., Gibson, B. K., Jozsa, G. I. G., Koribalski, B. S., McGaugh, S. S., Oosterloo, T. A., Spekkens, K., Schröder, A. C., Adams, E. A. K., Athanassoula, E., Bershady, M. A., Beswick, R. J., Blyth, S., Elson, E. C., Frank, B. S., Heald, G., Henning, P. A., Kurapati, S., Loubser, S. I., Lucero, D., Meyer, M., Namumba, B., Oh, S. -H., Sardone, A., Sheth, K., Smith, M. W. L., Sorgho, A., Walter, F., Williams, T., Woudt, P. A., Zijlstra, A.
Publikováno v:
A&A 688, A109 (2024)
The MHONGOOSE (MeerKAT HI Observations of Nearby Galactic Objects: Observing Southern Emitters) survey maps the distribution and kinematics of the neutral atomic hydrogen (HI) gas in and around 30 nearby star-forming spiral and dwarf galaxies to extr
Externí odkaz:
http://arxiv.org/abs/2404.01774
Publikováno v:
Published in RAS Astronomy and Geophysic, Vol 64, p 6.24 (December 2023)
In this short paper we outline the case for a small radio telescope array in the southern hemisphere with operations dedicated to rapid follow-up and monitoring of astrophysical transients. We argue that the science harvest from such a facility would
Externí odkaz:
http://arxiv.org/abs/2402.04698
Autor:
Smirnov, O. M., Stappers, B. W., Tasse, C., Bester, H. L., Bignall, H., Walker, M. A., Caleb, M., Rajwade, K. M., Buchner, S., Woudt, P., Ivchenko, M., Roth, L., Noordam, J. E., Camilo, F.
We report on a radiopolarimetric observation of the Saturn-Jupiter Great Conjunction of 2020 using the MeerKAT L-band system, initially carried out for science verification purposes, which yielded a serendipitous discovery of a pulsar. The radiation
Externí odkaz:
http://arxiv.org/abs/2312.12165
Autor:
Goedhart, S., Cotton, W. D., Camilo, F., Thompson, M. A., Umana, G., Bietenholz, M., Woudt, P. A., Anderson, L. D., Bordiu, C., Buckley, D. A. H., Buemi, C. S., Bufano, F., Cavallaro, F., Chen, H., Chibueze, J. O., Egbo, D., Frank, B. S., Hoare, M. G., Ingallinera, A., Irabor, T., Kraan-Korteweg, R. C., Kurapati, S., Leto, P., Loru, S., Mutale, M., Obonyo, W. O., Plavin, A., Rajohnson, S. H. A., Rigby, A., Riggi, S., Seidu, M., Serra, P., Smart, B. M., Stappers, B. W., Steyn, N., Surnis, M., Trigilio, C., Williams, G. M., Abbott, T. D., Adam, R. M., Asad, K. M. B., Baloyi, T., Bauermeister, E. F., Bennet, T. G. H., Bester, H., Botha, A. G., Brederode, L. R. S., Buchner, S., Burger, J. P., Cheetham, T., Cloete, K., de Villiers, M. S., de Villiers, D. I. L., Toit, L. J. du, Esterhuyse, S. W. P., Fanaroff, B. L., Fourie, D. J., Gamatham, R. R. G., Gatsi, T. G., Geyer, M., Gouws, M., Gumede, S. C., Heywood, I., Hokwana, A., Hoosen, S. W., Horn, D. M., Horrell, L. M. G., Hugo, B. V., Isaacson, A. I., Józsa, G. I. G., Jonas, J. L., Jordaan, J. D. B. L., Joubert, A. F., Julie, R. P. M., Kapp, F. B., Kriek, N., Kriel, H., Krishnan, V. K., Kusel, T. W., Legodi, L. S., Lehmensiek, R., Lord, R. T., Macfarlane, P. S., Magnus, L. G., Magozore, C., Main, J. P. L., Malan, J. A., Manley, J. R., Marais, S. J., Maree, M. D. J., Martens, A., Maruping, P., McAlpine, K., Merry, B. C., Mgodeli, M., Millenaar, R. P., Mokone, O. J., Monama, T. E., New, W. S., Ngcebetsha, B., Ngoasheng, K. J., Nicolson, G. D., Ockards, M. T., Oozeer, N., Passmoor, S. S., Patel, A. A., Peens-Hough, A., Perkins, S. J., Ramaila, A. J. T., Ratcliffe, S. M., Renil, R., Richter, L. L., Salie, S., Sambu, N., Schollar, C. T. G., Schwardt, L. C., Schwartz, R. L., Serylak, M., Siebrits, R., Sirothia, S. K., Slabber, M. J., Smirnov, O. M., Tiplady, A. J., van Balla, T. J., van der Byl, A., Van Tonder, V., Venter, A. J., Venter, M., Welz, M. G., Williams, L. P.
We present the SARAO MeerKAT Galactic Plane Survey (SMGPS), a 1.3 GHz continuum survey of almost half of the Galactic Plane (251\deg $\le l \le$ 358\deg and 2\deg $\le l \le$ 61\deg at $|b| \le 1.5\deg $). SMGPS is the largest, most sensitive and hig
Externí odkaz:
http://arxiv.org/abs/2312.07275
Autor:
Chastain, S. I., van der Horst, A. J., Rowlinson, A., Rhodes, L., Andersson, A., Diretse, R., Fender, R. P., Woudt, P. A.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2023;, stad2714
A new generation of radio telescopes with excellent sensitivity, instantaneous {\it uv} coverage, and large fields of view, are providing unprecedented opportunities for performing commensal transient searches. Here we present such a commensal search
Externí odkaz:
http://arxiv.org/abs/2309.08004
Autor:
Schroeder, Genevieve, Rhodes, Lauren, Laskar, Tanmoy, Nugent, Anya, Escorial, Alicia Rouco, Rastinejad, Jillian C., Fong, Wen-fai, van der Horst, Alexander J., Veres, Péter, Alexander, Kate D., Andersson, Alex, Berger, Edo, Blanchard, Peter K., Chastain, Sarah, Christensen, Lise, Fender, Rob, Green, David A., Groot, Paul, Heywood, Ian, Horesh, Assaf, Izzo, Luca, Kilpatrick, Charles D., Körding, Elmar, Lien, Amy, Malesani, Daniele B., McBride, Vanessa, Mooley, Kunal, Rowlinson, Antonia, Sears, Huei, Stappers, Ben, Tanvir, Nial, Vergani, Susanna D., Wijers, Ralph A. M. J., Williams-Baldwin, David, Woudt, Patrick
We present the discovery of the radio afterglow of the short $\gamma$-ray burst (GRB) 210726A, localized to a galaxy at a photometric redshift of $z\sim 2.4$. While radio observations commenced $\lesssim 1~$day after the burst, no radio emission was
Externí odkaz:
http://arxiv.org/abs/2308.10936