Results 41 to 50 of about 25,802 (223)
Early Planet Formation in Embedded Disks (eDisk). XIII. Aligned Disks with Nonsettled Dust around the Newly Resolved Class 0 Protobinary R CrA IRAS 32
The Astrophysical JournalYoung protostellar binary systems, with expected ages less than ∼10 ^5 yr, are little modified since birth, providing key clues to binary formation and evolution. We present a first look at the young, Class 0 binary protostellar system R CrA IRAS 32 from Frankie J. Encalada, Leslie W. Looney, Shigehisa Takakuwa, John J. Tobin, Nagayoshi Ohashi, Jes K. Jørgensen, Zhi-Yun Li, Yuri Aikawa, Yusuke Aso, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Zhe-Yu Daniel Lin, Alejandro Santamaría-Miranda, Itziar de Gregorio-Monsalvo, Nguyen Thi Phuong, Adele Plunkett, Jinshi Sai (Insa Choi), Rajeeb Sharma, Hsi-Wei Yen, Ilseung Han +21 moredoaj +1 more sourceAKARI Mission Program: Excavating Mass Loss History in Extended Dust
Shells of Evolved Stars (MLHES) I. Far-IR Photometry
, 2018 We performed a far-IR imaging survey of the circumstellar dust shells of 144
evolved stars as a mission programme of the AKARI infrared astronomical
satellite using the Far-Infrared Surveyor (FIS) instrument.Izumiura, Hideyuki, Takita, Satoshi, Tomasino, Rachael L., Torres, Andrew J., Ueta, Toshiya, Yamamura, Issei +5 morecore +1 more sourceA dusty pinwheel nebula around the massive star WR 104 [PDF]
, 1999 Wolf-Rayet (WR) stars are luminous massive blue stars thought to be immediate
precursors to the supernova terminating their brief lives. The existence of
dust shells around such stars has been enigmatic since their discovery some 30
years ago; the ...AF Moffat, AV Torres, CA Haniff, DA Allen, DS Sivia, HM Dyck, I Lundstrom, ID Howarth, John D. Monnier, JP Cassinelli, K Rochowicz, KA van der Hucht, M Cohen, PA Crowther, Peter G. Tuthill, PG Tuthill, PM Veen, PM Williams, PM Williams, PM Williams, R Walder, SF Gull, VG Zubko, VV Usov, William C. Danchi +24 morecore +2 more sourcesElectron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro‐ to nano‐scale
Meteoritics &Planetary Science, Volume 59, Issue 8, Page 2023-2043, August 2024.Abstract
Transmission electron microscopy analyses of Hayabusa2 samples show that Ryugu organic matter exhibits a range of morphologies, elemental compositions, and carbon functional chemistries consistent with those of carbonaceous chondrites that have experienced low‐temperature aqueous alteration.Rhonda M. Stroud, Jens Barosch, Lydie Bonal, Katherine Burgess, George D. Cody, Bradley T. De Gregorio, Luke Daly, Emmanuel Dartois, Elena Dobrică, Jean Duprat, Cecile Engrand, Dennis Harries, Minako Hashiguchi, Hope Ishii, Yoko Kebukawa, A. David Kilcoyne, Falko Langenhorst, Martin R. Lee, Larry R. Nittler, Eric Quirico, Taiga Okumura, Laurent Remusat, Scott Sandford, Hikaru Yabuta, Masanao Abe, Neyda M. Abreu, Paul A. J. Bagot, Pierre Beck, Laure Bejach, Phil A. Bland, John C. Bridges, Brittany A. Cymes, Alexandre Dazzi, Francisco de la Peña, Ariane Deniset‐Besseau, Satomi Enju, Yuma Enokido, David R. Frank, Jennifer Gray, Mitsutaka Haruta, Satoshi Hata, Leon Hicks, Yohei Igami, Damien Jacob, Kanami Kamide, Mutsumi Komatsu, Sylvain Laforet, Hugues Leroux, Corentin Le Guillou, Zita Martins, Maya Marinova, James Martinez, Jérémie Mathurin, Megumi Matsumoto, Toru Matsumoto, Junya Matsuno, Samuel McFadzean, Tatsuhiro Michikami, Itaru Mitsukawa, Akira Miyake, Masaaki Miyahara, Akiko Miyazaki, Gilles Montagnac, Smail Mostefaoui, Tomoki Nakamura, Aiko Nakato, Hiroshi Naraoka, Yusuke Nakauchi, Satoru Nakazawa, Masahiro Nishimura, Takaaki Noguchi, Kenta Ohtaki, Takuji Ohigashi, Tatsuaki Okada, Shota Okumura, Ryuji Okazaki, Thi H. V. Phan, Rolando Rebois, Kanako Sakamoto, Takanao Saiki, Hikaru Saito, Yusuke Seto, Miho Shigenaka, William Smith, Hiroki Suga, Mingqi Sun, Shogo Tachibana, Yoshio Takahashi, Yasuo Takeichi, Akihisa Takeuchi, Aki Takigawa, Yusuke Tamenori, Satoshi Tanaka, Fuyuto Terui, Michelle S. Thompson, Naotaka Tomioka, Akira Tsuchiyama, Yuichi Tsuda, Kentaro Uesugi, Masayuki Uesugi, Tomohiro Usui, Maximilien Verdier‐Paoletti, Daisuke Wakabayashi, Sei‐ichiro Watanabe, Toru Yada, Shohei Yamashita, Masahiro Yasutake, Kasumi Yogata, Makoto Yoshikawa, Hisayoshi Yurimoto, Pierre‐M. Zanetta, Thomas Zega, Michael E. Zolensky +112 morewiley +1 more sourceL1448 IRS3B: Dust Polarization Aligned with Spiral Features, Tracing Gas Flows
The Astrophysical JournalCircumstellar disk dust polarization in the (sub)millimeter is, for the most part, not from dust grain alignment with magnetic fields but rather indicative of a combination of dust self-scattering with a yet unknown alignment mechanism that is consistent Leslie W. Looney, Zhe-Yu Daniel Lin, Zhi-Yun Li, John J. Tobin, Martin Radecki, Syzygy Butte, Ian W. Stephens, Manuel Fernández-López, Haifeng Yang, Nickalas K. Reynolds, Patrick Sheehan, Woojin Kwon, Rachel Harrison, Allen North +13 moredoaj +1 more sourceMid-infrared spectroscopy of CAI and AOA from the Allende CV3.2 chondrite [PDF]
, 2005 Mid-infrared spectra of bulk CAI from the CV3.2 chondrite Allende are presented and compared with astronomical spectra of cometary dust, zodiacal light,the circumstellar disk of beta Pictoris and dust around the red supergiant PR ...Bland, P. A., Cressey, G., Grady, M. M., Koehler, M., Menzies, O. N., Morlok, A. +5 morecore On Absorption by Circumstellar Dust, With the Progenitor of SN2012aw as
a Case Study
, 2012 We use the progenitor of SN2012aw to illustrate the consequences of modeling
circumstellar dust using Galactic (interstellar) extinction laws that (1)
ignore dust emission in the near-IR and beyond; (2) average over dust
compositions, and (3) mis ...C. S. Kochanek, Draine, Fraser, Freedman, Gehrels, Goobar, Immler, Ivezic, Ivezic, Kochanek, Kochanek, Massey, Matzner, Moretti, O'Connor, Prieto, R. Khan, Soderberg, Stockdale, Sugerman, Szczygieł, Thompson, Ugliano, Van Dyk, Wang, X. Dai, Yadav +26 morecore +1 more sourceSN 2007od: A Type IIP SN with Circumstellar Interaction [PDF]
, 2010 SN 2007od exhibits characteristics that have rarely been seen in a Type IIP
supernova (SN). Optical V band photometry reveals a very steep brightness
decline between the plateau and nebular phases of ~4.5 mag, likely due to SN
2007od containing a low ...B. E. K. Sugerman, B. Ercolano, Barbon, Blondin, Couderc, D. L. Welch, Dwek, Fox, Fransson, Geoffrey C. Clayton, Gerardy, Hanner, Immler, Immler, Immler, J. Clem, J. E. Andrews, J. Fabbri, J. P. Chatelain, J. S. Gallagher, Kasen, Kotak, Kozasa, Landolt, Leonard, Lucy, M. J. Barlow, M. Meixner, Meikle, Mikuz, Pooley, R. Wesson, Smith, Smith, Sollerman, Sugerman, Welch +36 morecore +3 more sourcesJWST imaging of the closest globular clusters—I. Possible infrared excess among white dwarfs in NGC 6397
Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.Abstract
We present James Webb Space Telescope observations of the globular cluster NGC 6397 and use them to extend to infrared wavelengths the characterization of the cluster's entire white dwarf (WD) cooling sequence (CS). The data allows us to probe fundamental astrophysical WD properties and to search for evidence in their colors for (or against ...L. R. Bedin, D. Nardiello, M. Salaris, M. Libralato, P. Bergeron, A. J. Burgasser, D. Apai, M. Griggio, M. Scalco, J. Anderson, R. Gerasimov, A. Bellini +11 morewiley +1 more source
