论文标题
V410幼犬：早期恒星进化的有用实验室
V410 Puppis: A useful laboratory for early stellar evolution
论文作者
论文摘要
多星V410幼犬上的新光谱法（大力神）和地面多色光度数据与卫星光度法（Hipparcos和Tess）以及历史悠久的星体观测结合在一起。 V410 PUP AAB的绝对参数是派生的：$ m_ {aa} $ = $ 3.15 \ pm 0.10 $，$ m_ {ab {ab} $ = $ 1.83 \ pm 0.08 $（m $ _ $ _ {\ odot} $）; $ r_ {aa} $ = $ 2.12 \ pm 0.10 $，$ r_ {ab} $ = $ 1.52 \ pm 0.08 $（r $ _ \ odot $）; $ a $ = $ 6.57 \ pm 0.04 $ r $ _ \ odot $; $ t_ {aa} $ = $ 12500 \ pm 1000 $，$ t_ {ab} $ = $ 9070 \ pm 800 $（k）和光度距离$ 350 \ pm 10 $（pc）。我们报告了在光曲线中发现了低振幅SPB变化的发现，以及V410 PUP C中V410 PUP B的积聚结构以及发射核的指示。我们认为V410 PUP可能是与Vela 2 OB关联相关的年轻地层。合并的证据允许与标准恒星演化建模的比较范围7-25 MYR的年龄。
New spectrometric (HERCULES) and ground-based multi-colour photometric data on the multiple star V410 Puppis are combined with satellite photometry (HIPPARCOS and TESS), as well as historic astrometric observations. Absolute parameters for V410 Pup Aab are derived: $M_{Aa}$ = $3.15 \pm 0.10$, $M_{Ab}$ = $1.83 \pm 0.08$ (M$_{\odot}$); $R_{Aa}$ = $2.12 \pm 0.10$, $R_{Ab}$ = $1.52 \pm 0.08$ (R$_\odot$); $a$ = $6.57 \pm 0.04$ R$_\odot$; $T_{Aa}$ = $12500 \pm 1000$, $T_{Ab}$ = $9070 \pm 800$ (K), and photometric distance $350 \pm 10$ (pc). We report the discovery of a low-amplitude SPB variation in the light curve and also indications of an accretion structure around V410 Pup B as well as emission cores in V410 Pup C. We argue that V410 Pup is probably a young formation connected with the Vela 2 OB Association. The combined evidence allows an age in the range 7-25 Myr from comparisons with standard stellar evolution modelling.
