Knowledge (XXG)

Talk:TRAPPIST-1

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576: 708: 1451: 286: 227: 567: 636: 609: 1470: 1465: 744: 524: 329: 879: 467: 324: 790: 1802:(p. 9). Yes the measurements rule out a large subset of CO2 atmospheres, but there still exist subset of CO2 atmosphere that can exhibit airless feature at 13.5–16.6 μm but may show up in other bandpasses. If we only have a single bandpass data, then presence of thick CO2 atmosphere cannot be ruled out, though the most parsimonious interpretation would be airless/thin atmosphere. 837: 760: 646: 1460: 1773:
The percentage of potentially removed gasses from the atmospheres of these exoplanets is (according to that paper) in the order of 1e-14, much lower than the measurement accuracy of the mass of the planets in question. While it's certainly a possibility, I wouldn't worry about it. The influence of
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numerical modeling in terms of evidence level. Given the rather clear absorption feature at 11.6–14.2 μm, I will be rather surprised if double phase curve confirms the planet airless. Sometimes I wonder if 11.6–14.2 μm was arranged to observe first before 13.5–16.6 μm, we are probably drowning in
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rather than the first sentence or so of the article itself. I assume it is due to the fact that the infobox header is in a template whereas this row of the table is directly in the article, and the light-weight popup doesn't do a full parsing/transclusion to recognize that it's a table. Did a
1847:. The second paper, more comprehensively, analyzed two bandpasses 11.6–14.2 and 13.5–16.6 μm and concluded with possibly thick atmosphere on 1b only seen in 11.6–14.2 but not in 13.5–16.6 μm. I thought it would be more updated to include the 2nd paper's conclusion in the wikipedia. 1798:
articles published last year, but it is often omitted that these preliminary observations are single photometric measurements confined to a single bandpass, 13.5–16.6 μm. It is impossible to rule out presence of all thick atmospheres solely based on a single bandpass
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papers on how CO2 rich these planets are. But I'm in no hurry to edit anything, and don't plan to even after the 11.6–14.2 μm paper gets through peer review. I'm certainly expecting phase curve to confirm the existence of atmosphere, later this year or the next.
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I've added some information in the "potential atmospheres" section on the ruling-out of an atmosphere around TRAPPIST-1b but I don't really like it. Also, while anyone's here, can anyone check whether the nbsp bits need to be added anywhere?
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is in the TRAPPIST-1b section. I've put a second link in the scientific importance section since it's more important there, but I'd like to get second opinions on where to put the link and where the acronym - maybe one in the lead too?
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Mmm, while I concur sorta, so as long as published sources don't say "actually, we can't rule out an atmosphere with this" or "actually, this isn't consistent with an airless planet" we can't say that on Knowledge (XXG).
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I am not convinced that putting the table after the planet sections is useful. For good or ill, the planet sections are just brief summaries and the table is the more important information.
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Indeed, more observations in a different bandpass 11.6–14.2 μm has found surprisingly low emission that is possibly indicative of heat redistribution by a thick atmosphere
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Nothing conclusive about the presence of atmospheres on 1b and 1c until double phase curve or more bandpass measurements out, maybe later this year!
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I think that the orbital information should be placed last because this is not what the general reader looks for first. But that's just my opinion.
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has been commented out for a while because it incorrectly claims that the density is precisely known. There is an alternative file
104: 20: 1966: 74: 1808:. A type of thick atmosphere that show up in 11.6–14.2 μm wavelength, but not in 13.5–16.6 μm, is CO2 with thermal inversion. 589: 295: 65: 1883:
which argues that no atmosphere should present around any of the planets, but it's a radiative cooling analysis and given
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It wasn't an accident, unfortunately - as noted on the FAC page the template overlinks and thus was deemed unacceptable.
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Good job with the explanatory notes though! This is something IMO all FA articles about a technical topic should have.
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have said that they don't think it's highly important to avoid overlinking in the template also for reader reasons.
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You're right, my comment mainly addresses the apparently contradictory conclusions reached by the two papers,
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for that content in the latter page, and it must not be deleted as long as the latter page exists.
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I think that neglecting the atomic line cooling is likely to make a grossly inaccurate analysis.
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the star itself on atmospheric losses is much greater, because it's so much closer.
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The following references may be useful when improving this article in the future:
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Pages within the scope of WikiProject Astronomical objects (WP Astronomy Banner)
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This article has been viewed enough times in a single week to appear in the
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might remove hydrogen/oxygen atmospheres of the middle TRAPPIST-1 planets.
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A news item involving this article was featured on Knowledge (XXG)'s
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Template talk:Starbox begin#How to make the template not overlink
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Knowledge (XXG) Did you know articles that are featured articles
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have temperatures that would allow the existence of liquid water
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JWST is inconclusive (currently) on the presence of atmosphere
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Knowledge (XXG) level-5 vital articles in Physical sciences
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File:Possible Interiors of the TRAPPIST-1 Exoplanets 02.png
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All prior and subsequent edits to the article are noted in
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Featured articles that have not appeared on the main page
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b/c that template repeatedly links several pages, as per
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File:Possible Interiors of the TRAPPIST-1 Exoplanets.jpg
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File:Possible Interiors of the TRAPPIST-1 Exoplanets.jpg
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causes the popup to display the literal wikisource:
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157: 150: 144: 138: 132: 122: 94: 19:This is the 1752:This source 1730:this source 1471:Edu and Gov 1328:Exploration 1214:TRAPPIST-1h 1199:TRAPPIST-1g 1184:TRAPPIST-1f 1169:TRAPPIST-1e 1154:TRAPPIST-1d 1139:TRAPPIST-1c 1124:TRAPPIST-1b 949:Description 849:2MUCD 12171 535:In the news 396:Peer review 358:Peer review 234:written in 148:free images 31:not a forum 1931:Categories 1906:Aleral Wei 1849:Aleral Wei 1813:Aleral Wei 1368:References 1229:Data table 900:TRAPPIST-1 854:TRAPPIST-1 799:TRAPPIST-1 539:column on 501:TRAPPIST-1 486:column on 301:identified 292:TRAPPIST-1 25:TRAPPIST-1 1598:This edit 1521:Nimbus227 1257:Stability 936:Discovery 858:this edit 670:Astronomy 665:Astronomy 615:Astronomy 584:is rated 529:Main Page 476:Main Page 245:travelled 88:if needed 71:Be polite 21:talk page 1863:preprint 1427:183,947 1342:See also 978:Activity 586:FA-class 458:Promoted 401:Reviewed 363:Reviewed 257:artefact 186:Archives 56:get help 29:This is 27:article. 1461:Scholar 1424:183,947 1390:93,930 1382:Sources 1375:93,965 1250:15,384 1117:15,127 999:25,375 915:Section 862:history 813:Traffic 697:on the 531:in the 478:in the 341:Process 261:analyse 253:defence 154:WP refs 142:scholar 1796:Nature 1776:Dhrm77 1664:DMacks 1627:DMacks 1403:1,518 1387:93,930 1321:3,251 1306:2,620 1291:6,634 1278:5,139 1265:5,556 1237:4,272 1222:1,141 1207:1,117 1192:1,229 1177:1,648 1162:1,596 1147:1,815 1132:2,027 1104:4,572 1089:1,302 1074:1,258 1059:3,843 1044:2,146 1029:6,308 1014:2,740 986:2,560 971:1,173 956:7,936 943:3,582 930:7,995 917:total 808:Google 776:(10th) 592:scale. 439:Listed 344:Result 249:centre 241:colour 126:Google 1902:: --> 1421:Total 1400:1,518 1355:Notes 1318:3,251 1303:2,620 1275:5,139 1262:5,556 1247:9,828 1234:4,272 1219:1,141 1204:1,117 1189:1,229 1174:1,648 1159:1,596 1144:1,815 1129:2,027 1101:4,572 1086:1,302 1071:1,258 1066:Moons 1056:3,843 1041:2,146 1026:6,308 1011:2,740 996:3,206 983:2,560 968:1,173 953:4,203 940:3,582 927:7,995 923:(Top) 912:count 856:with 806:from 573:This 294:is a 191:Index 169:JSTOR 130:books 84:Seek 1910:talk 1893:talk 1885:this 1871:talk 1853:talk 1844:and 1833:talk 1817:talk 1780:talk 1764:talk 1738:talk 1715:talk 1695:talk 1668:talk 1658:and 1646:talk 1631:talk 1581:talk 1567:talk 1552:talk 1533:talk 1502:talk 1466:News 1416:786 1349:480 1336:578 910:Byte 802:was 338:Date 162:FENS 136:news 73:and 1600:by 1413:786 1362:26 1346:480 1333:578 1288:185 1114:282 846:of 689:Mid 176:TWL 1933:: 1912:) 1895:) 1873:) 1855:) 1835:) 1819:) 1782:) 1766:) 1740:) 1717:) 1697:) 1670:) 1662:. 1648:) 1633:) 1623:}} 1617:{{ 1583:) 1569:) 1554:) 1535:) 1504:) 1372:35 1359:26 618:: 470:A 259:, 255:, 251:, 247:, 243:, 197:, 193:, 156:) 54:; 1908:( 1891:( 1869:( 1851:( 1831:( 1815:( 1778:( 1762:( 1736:( 1713:( 1693:( 1666:( 1644:( 1629:( 1579:( 1565:( 1550:( 1531:( 1500:( 824:. 816:) 725:. 701:. 598:: 543:. 537:" 533:" 513:? 492:. 484:" 480:" 312:. 275:. 199:2 195:1 188:: 172:· 166:· 158:· 151:· 145:· 139:· 133:· 128:( 58:.

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