Zobrazeno 1 - 10
of 2 467
pro vyhledávání: '"Richards, P. M."'
Autor:
Malfait, Jolien, Siess, Lionel, Vermeulen, Owen, Esseldeurs, Mats, Wallström, Sofia H. J., Richards, Anita M. S., De Ceuster, Frederik, Maes, Silke, Bolte, Jan, Decin, Leen
Asymmetric 3D structures are observed in the outflows of evolved low- and intermediate-mass stars, and are believed to be shaped through the interaction of companions that are hidden within the dense wind. We investigate how triple systems can shape
Externí odkaz:
http://arxiv.org/abs/2408.16565
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
We use 3D computer modelling to investigate the timescales and radiative output from maser flares generated by the impact of shock-waves on astronomical unit-scale clouds in interstellar and star-forming regions, and in circumstellar regions in some
Externí odkaz:
http://arxiv.org/abs/2404.10741
Autor:
Matsuura, Mikako, Boyer, M., Arendt, Richard G., Larsson, J., Fransson, C., Rest, A., Ravi, A. P., Park, S., Cigan, P., Temim, T., Dwek, E., Barlow, M. J., Bouchet, P., Clayton, G., Chevalier, R., Danziger, J., De Buizer, J., De Looze, I., De Marchi, G., Fox, O., Gall, C., Gehrz, R. D., Gomez, H. L., Indebetouw, R., Kangas, T., Kirchschlager, F., Kirshner, R., Lundqvist, P., Marcaide, J. M., Martí-Vidal, I., Meixner, M., Milisavljevic, D., Orlando, S., Otsuka, M., Priestley, F., Richards, A. M. S., Schmidt, F., Staveley-Smith, L., Smith, Nathan, Spyromilio, J., Vink, J., Wang, Lifan, Watson, D., Wesson, R., Wheeler, J. C., Woodward, C. E., Zanardo, G., Alp, D., Burrows, D.
JWST/NIRCam obtained high angular-resolution (0.05-0.1''), deep near-infrared 1--5 micron imaging of Supernova (SN) 1987A taken 35 years after the explosion. In the NIRCam images, we identify: 1) faint H2 crescents, which are emissions located betwee
Externí odkaz:
http://arxiv.org/abs/2404.10042
Emission lines from Rydberg transitions are detected for the first time from a region close to the surface of Betelgeuse. The H30${\alpha}$ line is observed at 231.905 GHz, with a FWHM ~42 km/s and extended wings. A second line at 232.025 GHz (FWHM ~
Externí odkaz:
http://arxiv.org/abs/2404.06501
Autor:
Facchini, Stefano, Testi, Leonardo, Humphreys, Elizabeth, Donckt, Mathieu Vander, Isella, Andrea, Wrzosek, Ramon, Baudry, Alain, Gray, Malcom D., Richards, Anita M. S., Vlemmings, Wouter
The water molecule is a key ingredient in the formation of planetary systems, with the water snowline being a favourable location for the growth of massive planetary cores. Here we present Atacama Large Millimeter/ submillimeter Array data of the rin
Externí odkaz:
http://arxiv.org/abs/2403.00647
Autor:
Humphreys, Roberta M., Richards, A. M. S., Davidson, Kris, Singh, A. P., Decin, L., Ziurys, L. M.
The red hypergiant VY CMa is famous for its very visible record of high mass loss events. Recent CO observations with ALMA revealed three previously unknown large scale outflows (Paper I). In this paper we use the CO maps to investigate the motions o
Externí odkaz:
http://arxiv.org/abs/2401.14467
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:
Sano, H., Yamane, Y., van Loon, J. Th., Furuya, K., Fukui, Y., Alsaberi, R. Z. E., Bamba, A., Enokiya, R., Filipović, M. D., Indebetouw, R., Inoue, T., Kawamura, A., Lakićević, M., Law, C. J., Mizuno, N., Murase, T., Onishi, T., Park, S., Plucinsky, P. P., Rho, J., Richards, A. M. S., Rowell, G., Sasaki, M., Seok, J., Sharda, P., Staveley-Smith, L., Suzuki, H., Temim, T., Tokuda, K., Tsuge, K., Tachihara, K.
We present the first compelling evidence of shock-heated molecular clouds associated with the supernova remnant (SNR) N49 in the Large Magellanic Cloud (LMC). Using $^{12}$CO($J$ = 2-1, 3-2) and $^{13}$CO($J$ = 2-1) line emission data taken with the
Externí odkaz:
http://arxiv.org/abs/2311.02180
Autor:
Asaki, Yoshiharu, Maud, Luke T., Francke, Harold, Nagai, Hiroshi, Petry, Dirk, Fomalont, Edward B., Humphreys, Elizabeth, Richards, Anita M. S., Wong, Ka Tat, Dent, William, Hirota, Akihiko, Fernandez, Jose Miguel, Takahashi, Satoko, Hales, Antonio S.
The Atacama Large Millimeter/submillimeter Array (ALMA) was used in 2021 to image the carbon-rich evolved star R Lep in Bands 8-10 (397-908 GHz) with baselines up to 16 km. The goal was to validate the calibration, using band-to-band (B2B) phase refe
Externí odkaz:
http://arxiv.org/abs/2310.09664