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LIBRIS Formathandbok (Information om MARC21)
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03969naa a2200745 4500 | |
| 001 | oai:DiVA.org:su-189208 | |
| 003 | SwePub | |
| 008 | 210118s2020 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1892082 URI |
| 024 | 7 | a https://doi.org/10.3847/2041-8213/abc6312 DOI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Currie, Thayne4 aut |
| 245 | 1 0 | a SCExAO/CHARIS Direct Imaging Discovery of a 20 au Separation, Low-mass Ratio Brown Dwarf Companion to an Accelerating Sun-like Star |
| 264 | c 2020-11-30 | |
| 264 | 1 | b American Astronomical Society,c 2020 |
| 338 | a print2 rdacarrier | |
| 520 | a We present the direct imaging discovery of a substellar companion to the nearby Sun-like star, HD 33632 Aa, at a projected separation of similar to 20 au, obtained with SCExAO/CHARIS integral field spectroscopy complemented by Keck/NIRC2 thermal infrared imaging. The companion, HD 33632 Ab, induces a 10.5 sigma astrometric acceleration on the star as detected with the Gaia and Hipparcos satellites. SCExAO/CHARIS JHK (1.1-2.4 mu m) spectra and Keck/NIRC2 L-p (3.78 mu m) photometry are best matched by a field L/T transition object: an older, higher-gravity, and less dusty counterpart to HR 8799 cde. Combining our astrometry with Gaia/Hipparcos data and archival Lick Observatory radial velocities, we measure a dynamical mass of 46.4 8 M-J and an eccentricity of e < 0.46 at 95% confidence. HD 33632 Ab's mass and mass ratio (4.0% 0.7%) are comparable to the low-mass brown dwarf GJ 758 B and intermediate between the more massive brown dwarf HD 19467 B and the (near-)planet-mass companions to HR 2562 and GJ 504. Using Gaia to select for direct imaging observations with the newest extreme adaptive optics systems can reveal substellar or even planet-mass companions on solar system-like scales at an increased frequency compared to blind surveys. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 653 | a Exoplanets | |
| 653 | a Brown dwarfs | |
| 653 | a Astronomical instrumentation | |
| 653 | a Astronomical optics | |
| 653 | a Direct imaging | |
| 653 | a Coronagraphic imaging | |
| 653 | a Exoplanet detection methods | |
| 653 | a Astronomical techniques | |
| 700 | 1 | a Brandt, Timothy D.4 aut |
| 700 | 1 | a Kuzuhara, Masayuki4 aut |
| 700 | 1 | a Chilcote, Jeffrey4 aut |
| 700 | 1 | a Guyon, Olivier4 aut |
| 700 | 1 | a Marois, Christian4 aut |
| 700 | 1 | a Groff, Tyler D.4 aut |
| 700 | 1 | a Lozi, Julien4 aut |
| 700 | 1 | a Vievard, Sebastien4 aut |
| 700 | 1 | a Sahoo, Ananya4 aut |
| 700 | 1 | a Deo, Vincent4 aut |
| 700 | 1 | a Jovanovic, Nemanja4 aut |
| 700 | 1 | a Martinache, Frantz4 aut |
| 700 | 1 | a Wagner, Kevin4 aut |
| 700 | 1 | a Dupuy, Trent4 aut |
| 700 | 1 | a Wahl, Matthew4 aut |
| 700 | 1 | a Letawsky, Michael4 aut |
| 700 | 1 | a Li, Yiting4 aut |
| 700 | 1 | a Zeng, Yunlin4 aut |
| 700 | 1 | a Brandt, G. Mirek4 aut |
| 700 | 1 | a Michalik, Daniel4 aut |
| 700 | 1 | a Grady, Carol4 aut |
| 700 | 1 | a Janson, Markusu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)mjanso |
| 700 | 1 | a Knapp, Gillian R.4 aut |
| 700 | 1 | a Kwon, Jungmi4 aut |
| 700 | 1 | a Lawson, Kellen4 aut |
| 700 | 1 | a McElwain, Michael W.4 aut |
| 700 | 1 | a Uyama, Taichi4 aut |
| 700 | 1 | a Wisniewski, John4 aut |
| 700 | 1 | a Tamura, Motohide4 aut |
| 710 | 2 | a Stockholms universitetb Institutionen för astronomi4 org |
| 773 | 0 | t Astrophysical Journal Lettersd : American Astronomical Societyg 904:2q 904:2x 2041-8205x 2041-8213 |
| 856 | 4 | u https://iopscience.iop.org/article/10.3847/2041-8213/abc631/pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-189208 |
| 856 | 4 8 | u https://doi.org/10.3847/2041-8213/abc631 |
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