The two magnetic components in the Herbig Ae SB2 system HD 104237

被引：9

作者：

Jaervinen, S. P. ^{[1
]}

Carroll, T. A. ^{[1
]}

Hubrig, S. ^{[1
]}

Ilyin, I. ^{[1
]}

Schoeller, M. ^{[2
]}

Drake, N. A. ^{[3
,4
]}

Pogodin, M. A. ^{[5
]}

机构：

[1] Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany

[2] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[3] St Petersburg State Univ, Lab Observat Astrophys, Univ Sky Pr 28, St Petersburg 198504, Russia

[4] MCTIC, Lab Nacl Astrofis, Rua Estados Unidos 154, BR-37504364 Itajuba, MG, Brazil

[5] Cent Astron Observ Pulkovo, Pulkovskoye Chaussee 65, St Petersburg 196140, Russia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 486卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

stars: individual: HD?104237; stars: magnetic field; stars: pre-main-sequence; stars: variables: T Tauri; Herbig Ae/Be; STAR; FIELDS;

D O I：

10.1093/mnras/stz1212

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present longitudinal magnetic field measurements X8, for the Herbig Ae primary and the ilauri secondary in t le SB2 system HD 104237. These measurements were carried out using high spectral resolution observations obtained with the High Accuracy Radial velocity Planet Searcher in polarimetric mode, installed at the LSO La Silla 3.6 m telescope. In agreement writh previous studies of Herbig Ae stars, the longitudinal magnetic field in the primary is rather weak, ranging from 47 to 72 G. The secondary component possesses a variable, much stronger magnetic field, up to 6006, as expected for a magnetically active TTauri star. We estimated the rotation period of the primary, P-rot = 4.33717 +/- 0.00316 d (=104 +/- 0.08 h), from metal line equivalent width variations.

引用

页码：5499 / 5503

页数：5

共 23 条

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