Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Richards, Anita"'
Autor:
Booth, Mark, Klaassen, Pamela, Cicone, Claudia, Mroczkowski, Tony, Cordiner, Martin A., Di Mascolo, Luca, Johnstone, Doug, van Kampen, Eelco, Lee, Minju M., Liu, Daizhong, Orlowski-Scherer, John, Saintonge, Amélie, Smith, Matthew W. L., Thelen, Alexander, Wedemeyer, Sven, Akiyama, Kazunori, Andreon, Stefano, Arzoumanian, Doris, Bakx, Tom J. L. C., Bot, Caroline, Bower, Geoffrey, Brajša, Roman, Chen, Chian-Chou, da Cunha, Elisabete, Eden, David, Ettori, Stefano, Gaches, Brandt, Hatziminaoglou, Evanthia, Luppe, Patricia, Magnelli, Benjamin, Marshall, Jonathan P., Montenegro-Montes, Francisco Miguel, Niemack, Michael, Nixon, Conor, de Pater, Imke, Perrott, Yvette, Raimundo, Sandra I., Redaelli, Elena, Richards, Anita, Rybak, Matus, Šarčević, Nikolina, Semenov, Dmitry, Spezzano, Silvia, Srinivasan, Sundar, Stanke, Thomas, Andreani, Paola, Beltrán, Maria T., Butler, Bryan J., Cantalupo, Sebastiano, Dagostino, Miguel Chavez, Duarte-Cabral, Ana, Emonts, Bjorn, Fletcher, Leigh, Gary, Dale E., Gunar, Stanislav, Hacar, Alvaro, Hagedorn, Bendix, Kaminski, Tomek, Kirton, Fiona, de Kleer, Katherine, Kontar, Eduard, Kuan, Yi-Jehng, Lightfoot, John, Lopez-Rodriguez, Enrique, Lundgren, Andreas, Milam, Stefanie N., Mohan, Atul, Moreno, Raphael, Motorina, Galina G., Moullet, Arielle, Pattle, Kate, Pellizzoni, Alberto, Peretto, Nicolas, Ramasawmy, Joanna, Ricci, Claudio, Rigby, Andrew J., Sánchez-Monge, Álvaro, Saberi, Maryam, Shimojo, Masumi, Simionescu, Aurora, Thompson, Mark, Traficante, Alessio, Vignali, Cristian, White, Stephen M.
Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current single-dish facilities have presented a tantalising view of the bright
Externí odkaz:
http://arxiv.org/abs/2407.01413
Autor:
Facchini, Stefano, Testi, Leonardo, Humphreys, Elizabeth, Donckt, Mathieu Vander, Isella, Andrea, Wrzosek, Ramon, Baudry, Alain, Gray, Malcom D., Richards, Anita M. S., Vlemmmings, 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:
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
Publikováno v:
A&A 681, A17 (2024)
[Abridged] Aim: We aim to derive a new mass-loss rate prescription for RSGs that is not afflicted with some uncertainties inherent in preceding studies. Methods: We have observed CO rotational line emission towards a sample of RSGs in the open cluste
Externí odkaz:
http://arxiv.org/abs/2303.09385
Characterising the high-mass star forming region IRAS 18144-1723 through methanol maser observations
Autor:
Khafagy, Esraa, Edris, khaled A., Shalabiea, Osama M., Bartkiewicz, Anna, Richards, Anita M. S., Awad, Zainab
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:
http://arxiv.org/abs/2211.11211
Autor:
Greaves, Jane S., Petkowski, Janusz J., Richards, Anita M. S., Sousa-Silva, Clara, Seager, Sara, Clements, David L.
Publikováno v:
Geophysical Research Letters, 50, e2023GL103539
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 <0.8 ppb of PH3. We noticed that some spectral artefacts arose from no
Externí odkaz:
http://arxiv.org/abs/2211.09852
Autor:
Jaroenjittichai, Phrudth, Sugiyama, Koichiro, Kramer, Busaba H., Soonthornthum, Boonrucksar, Akahori, Takuya, Asanok, Kitiyanee, Baan, Willem, Bran, Sherin Hassan, Breen, Shari L., Cho, Se-Hyung, Chanapote, Thanapol, Dodson, Richard, Ellingsen, Simon P., Etoka, Sandra, Gray, Malcolm D., Green, James A., Hada, Kazuhiro, Halson, Marcus, Hirota, Tomoya, Honma, Mareki, Imai, Hiroshi, Johnston, Simon, Kim, Kee-Tae, Kramer, Michael, Li, Di, Macatangay, Ronald, Menten, Karl M., Minh, Young Chol, Mkrtichian, David, Pimpanuwat, Bannawit, Richards, Anita M. S., Rioja, Maria, Rujopakarn, Wiphu, Sakai, Daisuke, Sakai, Nobuyuki, Samanso, Nattida, Sanpa-arsa, Siraprapa, Semenko, Eugene, Sunada, Kazuyoshi, Surapipith, Vanisa, Thoonsaengngam, Nattaporn, Voronkov, Maxim A., Wongphecauxson, Jompoj, Yadav, Ram Kesh, Zhang, Bo, Zheng, Xing Wu, Poshyachinda, Saran
This White Paper summarises potential key science topics to be achieved with Thai National Radio Telescope (TNRT). The commissioning phase has started in mid 2022. The key science topics consist of "Pulsars and Fast Radio Bursts (FRBs)", "Star Formin
Externí odkaz:
http://arxiv.org/abs/2210.04926
Autor:
Bains, William, Petkowski, Janusz J., Seager, Sara, Ranjan, Sukrit, Sousa-Silva, Clara, Rimmer, Paul B., Zhan, Zhuchang, Greaves, Jane S., Richards, Anita M. S.
Publikováno v:
GPSS
The potential detection of ppb levels phosphine (PH3) in the clouds of Venus through millimeter-wavelength astronomical observations is extremely surprising as PH3 is an unexpected component of an oxidized environment of Venus. A thorough analysis of
Externí odkaz:
http://arxiv.org/abs/2111.05182
Autor:
Greaves, Jane S., Rimmer, Paul B., Richards, Anita M. S., Petkowski, Janusz J., Bains, William, Ranjan, Sukrit, Seager, Sara, Clements, David L., Silva, Clara Sousa, Fraser, Helen J.
Publikováno v:
MNRAS 2022
New analysis is presented of the 1.1 mm wavelength absorption lines in Venus' atmosphere that suggested the presence of phosphine. We retrieve a sulphur dioxide observation from the JCMT archive that was simultaneous within a few days of the PH3 1-0
Externí odkaz:
http://arxiv.org/abs/2108.08393
Autor:
Greaves, Jane S., Richards, Anita M. S., Bains, William, Rimmer, Paul B., Clements, David L., Seager, Sara, Petkowski, Janusz J., Sousa-Silva, Clara, Ranjan, Sukrit, Fraser, Helen J.
Publikováno v:
Nature Astronomy 5.7 (2021): 636-639
We recover PH3 in the atmosphere of Venus in data taken with ALMA, using three different calibration methods. The whole-planet signal is recovered with 5.4{\sigma} confidence using Venus bandpass self-calibration, and two simpler approaches are shown
Externí odkaz:
http://arxiv.org/abs/2104.09285