Nested Dust Shells around the Wolf-Rayet Binary WR 140 observed with JWST
| dc.contributor.author | Lau, Ryan M. | |
| dc.contributor.author | Hankins, Matthew J. | |
| dc.contributor.author | Han, Yinuo | |
| dc.contributor.author | Argyriou, Ioannis | |
| dc.contributor.author | Hamaguchi, Kenji | |
| dc.contributor.author | et al | |
| dc.date.accessioned | 2022-11-04T16:18:26Z | |
| dc.date.available | 2022-11-04T16:18:26Z | |
| dc.date.issued | 2022-10-12 | |
| dc.description | Authors: Ryan M. Lau, Matthew J. Hankins, Yinuo Han, Ioannis Argyriou, Michael F. Corcoran, Jan J. Eldridge, Izumi Endo, Ori D. Fox, Macarena Garcia Marin, Theodore R. Gull, Olivia C. Jones, Kenji Hamaguchi, Astrid Lamberts, David R. Law, Thomas Madura, Sergey V. Marchenko, Hideo Matsuhara, Anthony F.J. Moffat, Mark R. Morris, Patrick W. Morris, Takashi Onaka, Michael E. Ressler, Noel D. Richardson, Christopher M. P. Russell, Joel Sanchez-Bermudez, Nathan Smith, Anthony Soulain, Ian R. Stevens, Peter Tuthill, Gerd Weigelt, Peredur M. Williams, and Ryodai Yamaguchi | en |
| dc.description.abstract | Massive colliding-wind binaries that host a Wolf-Rayet (WR) star present a potentially important source of dust and chemical enrichment in the interstellar medium (ISM). However, the chemical composition and survival of dust formed from such systems is not well understood. The carbon-rich WR (WC) binary WR 140 presents an ideal astrophysical laboratory for investigating these questions given its welldefined orbital period and predictable dust-formation episodes every 7.93 years around periastron passage. We present observations from our Early Release Science program (ERS1349) with the James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) Medium-Resolution Spectrometer (MRS) and Imager that reveal the spectral and spatial signatures of nested circumstellar dust shells around WR 140. MIRI MRS spectroscopy of the second dust shell and Imager detections of over 17 shells formed throughout the past & 130 years confirm the survival of carbonaceous dust grains from WR 140 that are likely carriers of “unidentified infrared” (UIR)-band features at 6.4 and 7.7 µm. The observations indicate that dust-forming WC binaries can enrich the ISM with organic compounds and carbonaceous dust. | en |
| dc.description.sponsorship | RML would like to acknowledge the members of our entire WR DustERS team for their valuable discussions and contributions to this work. We thank Amaya Springer Nature 2021 LATEX template Nested Dust Shells around the Wolf-Rayet Binary WR 140 observed with JWST 17 Moro-Martin, William Januszewki, Neill Reid, Margaret Meixner, and Bonnie Meinke for their support of the planning and execution of our ERS program. We would also like to acknowledge the MIRI instrument and MIRISim teams for their insightful feedback and support of our observation and data analysis plans. We are also grateful to Karl Gordon for his guidance on the MIRI Imager data reduction. Lastly, we would like to thank the anonymous reviewers for their prompt and valuable feedback that helped to improve the quality and focus of this work. The work of RML is supported by NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. YH acknowledges funding from the Gates Cambridge Trust. MFC and KH were supported by NASA under award number 80GSFC21M0002. OCJ acknowledges support from an STFC Webb fellowship. AFJM is grateful for financial aid from NSERC (Canada). J.S.-B. acknowledges the support received from the Mexican Council of Science (CONACyT) “Ciencia de Frontera” project CF-2019/263975. CMPR acknowledges support from NATA ATP grant 80NSSC22K0628 and NASA Chandra Theory grant TM2-23003X. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program ERS1349. Support for program ERS1349 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127. | en |
| dc.description.uri | https://www.nature.com/articles/s41550-022-01812-x | en |
| dc.format.extent | 21 pages | en |
| dc.genre | journal articles | en |
| dc.genre | preprints | en |
| dc.identifier | doi:10.13016/m2mrac-1wmb | |
| dc.identifier.citation | Lau, R.M., Hankins, M.J., Han, Y. et al. Nested dust shells around the Wolf–Rayet binary WR 140 observed with JWST. Nat Astron (2022). https://doi.org/10.1038/s41550-022-01812-x | en |
| dc.identifier.other | https://doi.org/10.1038/s41550-022-01812-x | |
| dc.identifier.uri | http://hdl.handle.net/11603/26273 | |
| dc.language.iso | en | en |
| dc.publisher | Springer Nature | en |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | Subject to Springer Nature re-use terms. Non-commercial use only. | en |
| dc.title | Nested Dust Shells around the Wolf-Rayet Binary WR 140 observed with JWST | en |
| dc.type | Text | en |
| dcterms.creator | https://orcid.org/0000-0001-7515-2779 | en |