PMO OpenIR
The Large-scale Interstellar Medium of SS 433/W50 Revisited
Su, Yang1,2; Zhou, Xin1,2; Yang, Ji1,2; Chen, Yang3,4; Chen, Xuepeng1,2; Zhang, Shaobo1,2
2018-08-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume863Issue:1Pages:17
Corresponding AuthorSu, Yang(yangsu@pmo.ac.cn)
AbstractWith new high-resolution CO and H I data, we revisited the large-scale interstellar medium (ISM) environment toward the SS. 433/W50 system. We find that two interesting molecular cloud (MC) concentrations, G39.315 -1.155 and G40.331-4.302, are well aligned along the precession cone of SS 433 within a smaller opening angle of similar to +/- 7 degrees. The kinematic features of the two MCs at similar to 73-84 km s(-1), as well as those of the corresponding atomic-gas counterparts, are consistent with the kinematic characteristics of SS. 433. That is, the receding gas from SS. 433 jet is probably responsible for the redshifted feature of G39.315-1.155 near the Galactic plane, and the approaching one may power the blueshifted gas of G40.331-4.302 toward the observer. Moreover, the H I emission at V-LSR similar to 70-90 km s(-1) displays the morphological resemblance with the radio nebula W50. We suggest that the V-LSR = 77 +/- 5 km s(-1) gas is physically associated with SS. 433/W50, leading to a near kinematic distance of 4.9 +/- 0.4 kpc for the system. The observed gas features, which are located outside the current radio boundaries of W50, are probably the fossil record of jet-ISM interactions at similar to 10(5) years ago. The energetic jets of the unique microquasar have profound effects on its ISM environment, which may facilitate the formation of molecular gas on the timescale of less than or similar to 0.1 Myr for the ram pressure of similar to 2 x 10(6) K cm(-3).
KeywordISM: individual objects (SS 433/W50) ISM: jets and outflows ISM: kinematics and dynamics ISM: supernova remnants
DOI10.3847/1538-4357/aad04e
WOS KeywordRESOLUTION RADIO OBSERVATIONS ; MOLECULAR CLOUD FORMATION ; X-RAY BINARIES ; GALAXY IC 5063 ; AMBIENT MEDIUM ; MASS-TRANSFER ; GRS 1915+105 ; 433 SYSTEM ; MILKY-WAY ; H-I
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000441711100012
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21785
Collection中国科学院紫金山天文台
Corresponding AuthorSu, Yang
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Jiangsu, Peoples R China
3.Nanjing Univ, Dept Astron, Nanjing 210023, Jiangsu, Peoples R China
4.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Su, Yang,Zhou, Xin,Yang, Ji,et al. The Large-scale Interstellar Medium of SS 433/W50 Revisited[J]. ASTROPHYSICAL JOURNAL,2018,863(1):17.
APA Su, Yang,Zhou, Xin,Yang, Ji,Chen, Yang,Chen, Xuepeng,&Zhang, Shaobo.(2018).The Large-scale Interstellar Medium of SS 433/W50 Revisited.ASTROPHYSICAL JOURNAL,863(1),17.
MLA Su, Yang,et al."The Large-scale Interstellar Medium of SS 433/W50 Revisited".ASTROPHYSICAL JOURNAL 863.1(2018):17.
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