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Publikováno v:
Astronomy and Astrophysics, 2024, 691, L14
We present contemporaneous high-angular-resolution millimeter imaging and visible polarimetric imaging of the nearby asymptotic giant branch (AGB) star W Hya to better understand the dynamics and dust formation within a few stellar radii. The star W
Externí odkaz:
http://arxiv.org/abs/2411.09759
Autor:
Dux, F., Millon, M., Lemon, C., Schmidt, T., Courbin, F., Shajib, A. J., Treu, T., Birrer, S., Wong, K. C., Agnello, A., Andrade, A., Galan, A. A., Hjorth, J., Paic, E., Schuldt, S., Schweinfurth, A., Sluse, D., Smette, A., Suyu, S. H.
We report the discovery of the first example of an Einstein zig-zag lens, an extremely rare lensing configuration. In this system, J1721+8842, six images of the same background quasar are formed by two intervening galaxies, one at redshift $z_1 = 0.1
Externí odkaz:
http://arxiv.org/abs/2411.04177
Autor:
Danilovich, T., Malfait, J., Van de Sande, M., Montargès, M., Kervella, P., De Ceuster, F., Coenegrachts, A., Millar, T. J., Richards, A. M. S., Decin, L., Gottlieb, C. A., Pinte, C., De Beck, E., Price, D. J., Wong, K. T., Bolte, J., Menten, K. M., Baudry, A., de Koter, A., Etoka, S., Gobrecht, D., Gray, M., Herpin, F., Jeste, M., Lagadec, E., Maes, S., McDonald, I., Marinho, L., Müller, H. S. P., Pimpanuwat, B., Plane, J. M. C., Sahai, R., Wallström, S. H. J., Yates, J., Zijlstra, A.
Publikováno v:
Nature Astronomy, 8, pages 308-327 (2024)
Binary interactions have been proposed to explain a variety of circumstellar structures seen around evolved stars, including asymptotic giant branch (AGB) stars and planetary nebulae. Studies resolving the circumstellar envelopes of AGB stars have re
Externí odkaz:
http://arxiv.org/abs/2407.16979
Autor:
Cohen-Cutler S; Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA., Wong K; Keck School of Medicine, University of Southern California, Los Angeles, CA; Radiation Oncology Program, Children's Hospital Los Angeles, Los Angeles, CA., Mena V; Department of Physical Medicine and Rehabilitation, Children's Hospital Los Angeles, Los Angeles, CA., Sianto K; Radiation Oncology Program, Children's Hospital Los Angeles, Los Angeles, CA., Wright MA; University of South Florida Morsani College of Medicine, Tampa, FL., Olch A; Keck School of Medicine, University of Southern California, Los Angeles, CA; Radiation Oncology Program, Children's Hospital Los Angeles, Los Angeles, CA., Orgel E; Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA; Keck School of Medicine, University of Southern California, Los Angeles, CA. Electronic address: eorgel@chla.usc.edu.
Publikováno v:
International journal of radiation oncology, biology, physics [Int J Radiat Oncol Biol Phys] 2022 Mar 01; Vol. 112 (3), pp. 838-839.
Weakly-supervised segmentation (WSS) has emerged as a solution to mitigate the conflict between annotation cost and model performance by adopting sparse annotation formats (e.g., point, scribble, block, etc.). Typical approaches attempt to exploit an
Externí odkaz:
http://arxiv.org/abs/2401.14074
Autor:
Wallstrom, S. H. J., Danilovich, T., Muller, H. S. P., Gottlieb, C. A., Maes, S., Van de Sande, M., Decin, L., Richards, A. M. S., Baudry, A., Bolte, J., Ceulemans, T., De Ceuster, F., de Koter, A., Mellah, I. El, Esseldeurs, M., Etoka, S., Gobrecht, D., Gottlieb, E., Gray, M., Herpin, F., Jeste, M., Kee, D., Kervella, P., Khouri, T., Lagadec, E., Malfait, J., Marinho, L., McDonald, I., Menten, K. M., Millar, T. J., Montarges, M., Nuth, J. A., Plane, J. M. C., Sahai, R., Waters, L. B. F. M., Wong, K. T., Yates, J., Zijlstra, A.
The dusty winds of cool evolved stars are a major contributor of the newly synthesised material enriching the Galaxy and future generations of stars. However, the details of the physics and chemistry behind dust formation and wind launching have yet
Externí odkaz:
http://arxiv.org/abs/2312.03467
Autor:
Russell, H. R., Lopez, L. A., Allen, S. W., Chartas, G., Choudhury, P. P., Dupke, R. A., Fabian, A. C., Flores, A. M., Garofali, K., Hodges-Kluck, E., Koss, M. J., Lanz, L., Lehmer, B. D., Li, J. -T., Maksym, W. P., Mantz, A. B., McDonald, M., Miller, E. D., Mushotzky, R. F., Qiu, Y., Reynolds, C. S., Tombesi, F., Tozzi, P., Trindade-Falcao, A., Walker, S. A., Wong, K. -W., Yukita, M., Zhang, C.
Stellar and black hole feedback heat and disperse surrounding cold gas clouds, launching gas flows off circumnuclear and galactic disks and producing a dynamic interstellar medium. On large scales bordering the cosmic web, feedback drives enriched ga
Externí odkaz:
http://arxiv.org/abs/2311.07661
Autor:
Kammoun, E., Lohfink, A. M., Masterson, M., Wilkins, D. R., Zhao, X., Baloković, M., Boorman, P. G., Connors, R. M. T., Coppi, P., Fabian, A. C., García, J. A., Madsen, K. K., Cavero, N. Rodriguez, Sridhar, N., Stern, D., Tomsick, J., Wevers, T., Walton, D. J., Bianchi, S., Buchner, J., Civano, F., Lanzuisi, G., Mallick, L., Matt, G., Merloni, A., Nardini, E., Piotrowska, J. M., Ricci, C., Wong, K. -W., Zoghbi, A., Collaboration, the HEX-P
The hard X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries is thought to be produced by a hot cloud of electrons referred to as the corona. This emission, commonly described by a power law with a high-energy cutoff, is sugg
Externí odkaz:
http://arxiv.org/abs/2311.04679
Autor:
Piotrowska, J. M., García, J. A., Walton, D. J., Beckmann, R. S., Stern, D., Ballantyne, D. R., Wilkins, D. R., Bianchi, S., Boorman, P. G., Buchner, J., Chen, C. -T., Coppi, P., Dauser, T., Fabian, A. C., Kammoun, E., Madsen, K., Mallick, L., Matt, G., Matzeu, G., Nardini, E., Pizzetti, A., Puccetti, S., Ricci, C., Tombesi, F., Torres-Albà, N., Wong, K. -W., Collaboration, the HEX-P
Constraining the primary growth channel of supermassive black holes (SMBH) remains one the most actively debated questions in the context of cosmological structure formation. Owing to the expected connection between SMBH spin parameter evolution and
Externí odkaz:
http://arxiv.org/abs/2311.04752