Pre-main sequence Star Candidate
A pre-main-sequence star (also known as a PMS star and PMS object) is a star in the stage when it has not yet reached the main sequence. Earlier in its life, the object is a protostar that grows by acquiring mass from its surrounding envelope of interstellar dust and gas. After the protostar blows away this envelope, it is optically visible, and appears on the stellar birthline in the Hertzsprung-Russell diagram. At this point, the star has acquired nearly all of its mass but has not yet started hydrogen burning (i.e. nuclear fusion of hydrogen). The star then contracts, its internal temperature rising until it begins hydrogen burning on the zero age main sequence. This period of contraction is the pre-main sequence stage. An observed PMS object can either be a T Tauri star, if it has fewer than 2 solar masses (M☉), or else a Herbig Ae/Be star, if it has 2 to 8 M☉. Yet more massive stars have no pre-main-sequence stage because they contract too quickly as protostars. By the time they become visible, the hydrogen in their centers is already fusing and they are main-sequence objects.
Uses material from the Wikipedia article "Pre-main sequence Star Candidate", which is released under the Creative Commons BY-SA 3.0.Astronomical object | Distance | Wiki | ||
---|---|---|---|---|
2MASS J05334918-0523023 | T Tau star Candidate | M | 1251 | |
2MASS J05341377-0500041 | T Tau star Candidate | 1268 | ||
2MASS J05341387-0536353 | T Tau star Candidate | M | 1287 | |
2MASS J05342743-0500263 | T Tau star Candidate | 1335 | ||
2MASS J05343276-0458467 | T Tau star Candidate | 1338 | ||
2MASS J05345373-0505489 | T Tau star Candidate | 1331 | ||
2MASS J05350303-0459597 | T Tau star Candidate | 1321 | ||
2MASS J05362100-0527340 | T Tau star Candidate | K | 1252 | |
2MASS J10354048-5813410 | Pre-main sequence Star Candidate | 7610 | ||
2MASS J10354231-5813561 | Pre-main sequence Star Candidate | 7501 | ||
2MASS J10360045-5814550 | Pre-main sequence Star Candidate | 7506 | ||
2MASS J11123235-6049477 | Pre-main sequence Star Candidate | 5375 | ||
2MASS J11124465-6049311 | Pre-main sequence Star Candidate | 5363 | ||
2MASS J11125299-6050229 | Pre-main sequence Star Candidate | 5344 | ||
2MASS J11125503-6048389 | Pre-main sequence Star Candidate | 5303 | ||
2MASS J11130226-6053162 | Pre-main sequence Star Candidate | 5308 | ||
2MASS J11130574-6052594 | Pre-main sequence Star Candidate | 5400 | ||
2MASS J11130805-6047190 | Pre-main sequence Star Candidate | 5342 | ||
2MASS J11130908-6048024 | Pre-main sequence Star Candidate | 5378 | ||
2MASS J11130920-6049433 | Pre-main sequence Star Candidate | 5324 | ||
2MASS J11131302-6046029 | Pre-main sequence Star Candidate | 5306 | ||
2MASS J11131429-6050135 | Pre-main sequence Star Candidate | 5314 | ||
2MASS J11131624-6047179 | Pre-main sequence Star Candidate | 5348 | ||
2MASS J11131717-6049595 | Pre-main sequence Star Candidate | 5307 | ||
2MASS J11131895-6047118 | Pre-main sequence Star Candidate | 5384 | ||
2MASS J11132002-6046329 | Pre-main sequence Star Candidate | 5384 | ||
2MASS J11132692-6049255 | Pre-main sequence Star Candidate | 5327 | ||
2MASS J11132923-6047409 | Pre-main sequence Star Candidate | 5383 | ||
2MASS J11133615-6048239 | Pre-main sequence Star Candidate | 5375 | ||
AA Orionis | T Tau star Candidate | K | 1342 | |
AG Orionis | T Tau star Candidate | G | 1345 | |
AO Orionis | T Tau star Candidate | 1339 | ||
AR Orionis | T Tau star Candidate | 1339 | ||
CE Orionis | T Tau star Candidate | K | 1347 | |
Haro 4-411 | T Tau star Candidate | 1254 | ||
HD 25373 | T Tau star Candidate | K | 1250 | |
HIP 14809 | T Tau star Candidate | G | 175 | |
HIP 19762 | T Tau star Candidate | K | 313 | |
HIP 21251 | T Tau star Candidate | B | 438 | |
II Orionis | T Tau star Candidate | K | 1288 | |
IM Orionis | T Tau star Candidate | M | 1334 | |
IS Orionis | T Tau star Candidate | K | 1322 | |
IV Orionis | T Tau star Candidate | K | 1304 | |
IX Orionis | T Tau star Candidate | K | 1331 | |
IZ Orionis | T Tau star Candidate | 1307 | ||
JW 222 | T Tau star Candidate | M | 1270 | |
KP Orionis | T Tau star Candidate | 1251 | ||
KR Orionis | T Tau star Candidate | K | 1305 | |
LM Orionis | T Tau star Candidate | K | 1271 | |
LO Orionis | T Tau star Candidate | M | 1295 | |
LP 356-14 | T Tau star Candidate | M | 63 | |
LW Orionis | T Tau star Candidate | M | 1316 | |
LX Orionis | T Tau star Candidate | 1316 | ||
MM Orionis | T Tau star Candidate | K | 1311 | |
MY Orionis | T Tau star Candidate | M | 1313 | |
MZ Orionis | T Tau star Candidate | M | 1278 | |
NY Orionis | T Tau star Candidate | G | 1300 | |
OQ Orionis | T Tau star Candidate | K | 1326 | |
OT Orionis | T Tau star Candidate | K | 1329 | |
OW Orionis | T Tau star Candidate | M | 1295 | |
OX Orionis | T Tau star Candidate | M | 1259 | |
T Orionis | T Tau star Candidate | A | 1319 | |
TV Orionis | T Tau star Candidate | K | 1277 | |
V1017 Orionis | T Tau star Candidate | M | 1306 | |
V1018 Orionis | T Tau star Candidate | M | 1301 | |
V1044 Orionis | T Tau star Candidate | G | 1281 | |
V1118 Orionis | T Tau star Candidate | M | 1253 | |
V1314 Orionis | T Tau star Candidate | G | 1298 | |
V1345 Orionis | T Tau star Candidate | M | 1283 | |
V1348 Orionis | T Tau star Candidate | K | 1266 | |
V1397 Orionis | T Tau star Candidate | K | 1305 | |
V1433 Orionis | T Tau star Candidate | M | 1253 | |
V1460 Orionis | T Tau star Candidate | M | 1262 | |
V1461 Orionis | T Tau star Candidate | M | 1307 | |
V1572 Orionis | T Tau star Candidate | 1282 | ||
V1578 Orionis | T Tau star Candidate | 1307 | ||
V1590 Orionis | T Tau star Candidate | M | 1288 | |
V1721 Orionis | T Tau star Candidate | M | 1281 | |
V1724 Orionis | T Tau star Candidate | M | 1330 | |
V1897 Orionis | T Tau star Candidate | 1256 | ||
V1944 Orionis | T Tau star Candidate | M | 1286 | |
V1988 Orionis | T Tau star Candidate | M | 1322 | |
V2004 Orionis | T Tau star Candidate | 1255 | ||
V2010 Orionis | T Tau star Candidate | 1255 | ||
V2012 Orionis | T Tau star Candidate | M | 1256 | |
V2033 Orionis | T Tau star Candidate | M | 1315 | |
V2057 Orionis | T Tau star Candidate | K | 1255 | |
V2064 Orionis | T Tau star Candidate | M | 1342 | |
V2123 Orionis | T Tau star Candidate | M | 1336 | |
V2129 Orionis | T Tau star Candidate | M | 1342 | |
V2151 Orionis | T Tau star Candidate | K | 1251 | |
V2228 Orionis | T Tau star Candidate | M | 1252 | |
V2267 Orionis | T Tau star Candidate | 1263 | ||
V2277 Orionis | T Tau star Candidate | M | 1250 | |
V2347 Orionis | T Tau star Candidate | M | 1321 | |
V2366 Orionis | T Tau star Candidate | 1278 | ||
V2446 Orionis | T Tau star Candidate | 1283 | ||
V2447 Orionis | T Tau star Candidate | 1291 | ||
V2485 Orionis | T Tau star Candidate | M | 1304 | |
V2499 Orionis | T Tau star Candidate | K | 1262 | |
V2543 Orionis | T Tau star Candidate | M | 1298 | |
V2548 Orionis | T Tau star Candidate | M | 1294 | |
V2551 Orionis | T Tau star Candidate | M | 1314 | |
V2554 Orionis | T Tau star Candidate | M | 1268 | |
V2573 Orionis | T Tau star Candidate | K | 1281 | |
V357 Orionis | T Tau star Candidate | M | 1274 | |
V360 Orionis | T Tau star Candidate | M | 1275 | |
V401 Orionis | T Tau star Candidate | K | 1337 | |
V405 Orionis | T Tau star Candidate | M | 1299 | |
V409 Orionis | T Tau star Candidate | K | 1267 | |
V426 Orionis | T Tau star Candidate | K | 1299 | |
V474 Orionis | T Tau star Candidate | K | 1344 | |
V488 Orionis | T Tau star Candidate | G | 1282 | |
V551 Orionis | T Tau star Candidate | M | 1283 | |
V553 Orionis | T Tau star Candidate | 1295 | ||
V575 Orionis | T Tau star Candidate | 1322 | ||
V745 Orionis | T Tau star Candidate | M | 1255 | |
V808 Orionis | T Tau star Candidate | K | 1258 | |
V848 Orionis | T Tau star Candidate | 1255 | ||
WW Orionis | T Tau star Candidate | 1336 | ||
WY Orionis | T Tau star Candidate | M | 1341 | |
WZ Orionis | T Tau star Candidate | K | 1275 | |
XY Orionis | T Tau star Candidate | 1285 | ||
YZ Orionis | T Tau star Candidate | G | 1287 | |
ZZ Orionis | T Tau star Candidate | 1305 |