Zobrazeno 1 - 10
of 213
pro vyhledávání: '"A M S Richards"'
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L43 (2024)
The J = 5.5 → 4.5 and J = 5 → 4 transitions of PO and PN, respectively, have been imaged in the envelope of hypergiant star VY Canis Majoris (VY CMa) using the Atacama Large Millimeter/submillimeter Array with angular resolutions of 0.″2 and 1.
Externí odkaz:
https://doaj.org/article/e9f6e51e250c43bc85c7c983c84631b3
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L13 (2024)
Emission lines from Rydberg transitions are detected for the first time from a region close to the surface of Betelgeuse. The H30 α line is observed at 231.905 GHz, with an FWHM ∼42 km s ^−1 and extended wings. A second line at 232.025 GHz (FWHM
Externí odkaz:
https://doaj.org/article/53e739192a9e411091b56125df0cc484
Autor:
Jane S. Greaves, Janusz J. Petkowski, Anita M. S. Richards, Clara Sousa‐Silva, Sara Seager, David L. Clements
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 23, Pp n/a-n/a (2023)
Abstract Searches for phosphine in Venus' atmosphere have sparked a debate. Cordiner et al. (2022, https://doi.org/10.1029/2022gl101055) analyze spectra from the Stratospheric Observatory For Infrared Astronomy (SOFIA) and infer
Externí odkaz:
https://doaj.org/article/32f9fe41292347f0bd96e432667bfa84
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 94 (2024)
The red hypergiant VY CMa is famous for its very visible record of high-mass-loss events. Recent CO observations with the Atacama Large Millimeter/submillimeter Array (ALMA) revealed three previously unknown large-scale outflows (Singh et al). In thi
Externí odkaz:
https://doaj.org/article/72877e8e60fa4ed39753116268c94d3d
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 1, p L1 (2023)
The J = 2 → 1 transition of CO near 230 GHz and the J = 3 → 2 line of HCN at 265 GHz have been imaged in the envelope of the red hypergiant star, VY Canis Majoris (VY CMa), using the Atacama Large Millimeter Array (ALMA) with angular resolutions
Externí odkaz:
https://doaj.org/article/680d80abacb54842bd09041ffcaeacb4
Autor:
H. Sano, Y. Yamane, J. Th. van Loon, K. Furuya, Y. Fukui, R. Z. E. Alsaberi, A. Bamba, R. Enokiya, M. D. Filipović, R. Indebetouw, T. Inoue, A. Kawamura, M. Lakićević, C. J. Law, N. Mizuno, T. Murase, T. Onishi, S. Park, P. P. Plucinsky, J. Rho, A. M. S. Richards, G. Rowell, M. Sasaki, J. Seok, P. Sharda, L. Staveley-Smith, H. Suzuki, T. Temim, K. Tokuda, K. Tsuge, K. Tachihara
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 1, p 53 (2023)
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 At
Externí odkaz:
https://doaj.org/article/c0edb6e57f3a429a858cf07b1f27c9b9
Autor:
M. Montargès, E. Cannon, A. de Koter, T. Khouri, E. Lagadec, P. Kervella, L. Decin, I. McDonald, W. Homan, L. B. F. M. Waters, R. Sahai, C. A. Gottlieb, J. Malfait, S. Maes, B. Pimpanuwat, M. Jeste, T. Danilovich, F. De Ceuster, M. Van de Sande, D. Gobrecht, S. H. J. Wallström, K. T. Wong, I. El Mellah, J. Bolte, F. Herpin, A. M. S. Richards, A. Baudry, S. Etoka, M. D. Gray, T. J. Millar, K. M. Menten, H. S. P. Müller, J. M. C. Plane, J. Yates, A. Zijlstra
Publikováno v:
Montargès, M, Cannon, E, Koter, A D, Khouri, T, Lagadec, E, Kervella, P, Decin, L, McDonald, I, Homan, W, Waters, L B F M, Sahai, R, Gottlieb, C A, Malfait, J, Maes, S, Pimpanuwat, B, Jeste, M, Danilovich, T, Ceuster, F D, Sande, M V D, Gobrecht, D, Wallström, S H J, Wong, K T, Mellah, I E, Bolte, J, Herpin, F, Richards, A M S, Baudry, A, Etoka, S, Gray, M D, Millar, T J, Menten, K M, Müller, H S P, Plane, J M C, Yates, J & Zijlstra, A 2023, ' The VLT/SPHERE view of the ATOMIUM cool evolved star sample: I. Overview: sample characterization through polarization analysis ', Astronomy and Astrophysics, vol. 671, A96 . https://doi.org/10.1051/0004-6361/202245398
Astronomy & Astrophysics, 671, pp. 1-22
Astronomy & Astrophysics, 671, 1-22
Astronomy & Astrophysics, 671, pp. 1-22
Astronomy & Astrophysics, 671, 1-22
Aims. Through the ATOMIUM project, based on an ALMA large program, we aim to present a consistent view of a sample of 17 nearby cool evolved stars (Aymptotic Giant Branch and red supergiant stars). Methods. Here we present VLT/SPHERE-ZIMPOL polarimet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fe89cd5b1452752863127a50cb36a41
https://hdl.handle.net/2066/291694
https://hdl.handle.net/2066/291694
Characterizing the high-mass star forming region IRAS 18144–1723 through methanol maser observations
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 518:4391-4400
We introduce a study of the massive star forming region IRAS 18144--1723 using observations of the 6.7 GHz methanol maser line. Such regions are opaque at short wavelengths but can be observed through radio emission lines. In this study we traced the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efb7d6c7cda743b7a46b62b22f2d71cb
https://doi.org/10.1093/mnras/stac3423
https://doi.org/10.1093/mnras/stac3423
Autor:
A Evans, B Pimpanuwat, A M S Richards, D P K Banerjee, U Munari, M D Gray, B Hutawarakorn Kramer, A Kraus
Publikováno v:
Evans, A, Pimpanuwat, B, Richards, A M S, Banerjee, D P K, Munari, U, Gray, M D, Kramer, B H & Kraus, A 2022, ' Stringent limits on $^{28}$SiO maser emission from the recurrent nova T Coronae Borealis ', Monthly Notices of the Royal Astronomical Society, vol. 514, no. 4, pp. 4894-4897 . https://doi.org/10.1093/mnras/stac1589
There are indications that the third known eruption of the recurrent nova T CrB is imminent, and multi-wavelength observations prior to the eruption are important to characterise the system before it erupts. T CrB is known to display the SiO fundamen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16c57fc00c2f3e5c25298512761887f1
https://doi.org/10.1093/mnras/stac1589
https://doi.org/10.1093/mnras/stac1589
Autor:
Jane Greaves, Janusz Jurand Petkowski, Anita M S Richards, Clara Sousa-Silva, Sara Seager, David L Clements
Searches for phosphine in Venus’ atmosphere have sparked a debate. Cordiner et al. 2022 analyse spectra from the Stratospheric Observatory For Infrared Astronomy (SOFIA) and infer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a316eeeda18f4ef1e987862ca5a4bf87
https://doi.org/10.22541/essoar.167839708.88497040/v1
https://doi.org/10.22541/essoar.167839708.88497040/v1
