论文标题
共生Nova V1835 Aquilae的光学时间序列光度法
Optical Time-Series Photometry of the Symbiotic Nova V1835 Aquilae
论文作者
论文摘要
我们在最近确定的共生Nova V1835 Aquilae（NSV 11749）的$ BVRI $ Passbands中介绍了时间序列CCD光度法，该时间表在5.1年的间隔为7-14天的节奏时间为7-14天。我们发现慢速变化，$ v $ $ \ sim $ 0.9 mag的范围和$ \ sim $ 0.3 mag in $ i $。对这些数据的分析表明，$ 419 \ pm 10美元的强烈周期性，我们认为这是系统的轨道时期。原本连杆的梯形光曲线中的倾角表明，由于巨型恒星的潮汐失真，椭圆形效应较弱，这又打开了V1835 AQL通过Roche Lobe溢出而不是通过恒星风能通过Roche Lobe溢出将其一些质量转移到热分子的可能性。我们还发现证据表明V1835 AQL是S型共生恒星，相对较不含星际灰尘，并将其包括在核燃烧的共生群中。最后，我们为V1835 AQL周围的田间22个变化星提供了光度法，周期和光曲线分类，其中大约一半是新鉴定的。
We present time-series CCD photometry in the $BVRI$ passbands of the recently identified symbiotic nova V1835 Aquilae (NSV 11749) over an interval of 5.1 years with 7-14 day cadence, observed during its quiescence. We find slow light variations with a range of $\sim$0.9 mag in $V$ and $\sim$0.3 mag in $I$. Analysis of these data show strong periodicity at $419 \pm 10$ days, which we interpret to be the system's orbital period. A dip in the otherwise-sinusoidal phased light curve suggests a weak ellipsoidal effect due to tidal distortion of the giant star, which in turn opens the possibility that V1835 Aql transfers some of its mass to the hot component via Roche lobe overflow rather than via a stellar wind. We also find evidence that V1835 Aql is an S-type symbiotic star, relatively free of circumstellar dust, and include it among the nuclear burning group of symbiotics. Finally, we provide photometry, periods, and light curve classifications for 22 variable stars in the field around V1835 Aql, about half of which are newly identified.
