내용
사진
사진 업로드
DSS Images Other Images
관련 글
Nearby Stars from the LSPM-North Proper-Motion Catalog. I. Main-Sequence Dwarfs and Giants within 33 Parsecs of the Sun
A list of 4131 dwarfs, subgiants, and giants located or suspected to belocated within 33 pc of the Sun is presented. All the stars are drawnfrom the new Lépine Shara Proper Motion (LSPM)-North catalog of61,976 stars with annual proper motions larger than 0.15"yr-1. Trigonometric parallax measurements are found in theliterature for 1676 of the stars in the sample; photometric andspectroscopic distance moduli are found for another 783 objects. Theremaining 1672 objects are reported here as nearby star candidates forthe first time. Photometric distance moduli are calculated for the newstars based on the (MV, V-J) relationship, calibrated withthe subsample of stars that have trigonometric parallaxes. The list ofnew candidates includes 539 stars that are suspected to be within 25 pcof the Sun, including 63 stars estimated to be within only 15 pc. Thecurrent completeness of the census of nearby stars in the northern skyis discussed in light of the new candidates presented here. It isestimated that ~32% (~18%) of nuclear-burning stars within 33 pc (25 pc)of the Sun remain to be located. The missing systems are expected tohave proper motions below the 0.15" yr-1 limit of theLSPM-North catalog.
|
새 글 등록
관련 링크
새 링크 등록
다음 그룹에 속해있음:
|
관측 및 측정 데이터
천체목록:
|
