论文标题
在HETDEX数据版本中搜索Supernovae
Searching for Supernovae in HETDEX Data Release 3
论文作者
论文摘要
我们从Hobby-eberly theScope Dark Energy实验（HETDEX）的第三个数据释放中提取了583个瞬态源位置的636个光谱。瞬态是通过Zwicky瞬态设施（ZTF）在2018年至2022年发现的。HetDEX光谱对于免费的光度测量发现了大量对象，可免费进行HETDEX光谱。我们尝试通过使用机器学习（ML）和模板匹配技术来探索和分类光谱。我们已经将两个瞬态来源确定为ZTF20AATPOOS = AT2020FIZ和ZTF19ABDKELQ是超新星的候选者。我们将AT2020FIZ分类为爆炸后约10天观察到的IIP超新星类型，我们建议ZTF19ABDKELQ作为最大最大光后40天捕获的可能IA型SN型。这两个来源的ZTF光度法与它们作为超新星的分类一致。除了这两个对象以外，我们还根据其光谱外观确认了几个ZTF瞬变为可变AGN，并确定了其他几种ZTF瞬变的宿主星系类型。
We have extracted 636 spectra taken at the positions of 583 transient sources from the third Data Release of the Hobby-Eberly Telescope Dark Energy eXperiment (HETDEX). The transients were discovered by the Zwicky Transient Facility (ZTF) during 2018 - 2022. The HETDEX spectra are useful to classify a large number of objects found by photometric surveys for free. We attempt to explore and classify the spectra by utilizing machine learning (ML) and template matching techniques. We have identified two transient sources, ZTF20aatpoos = AT2020fiz and ZTF19abdkelq as supernova candidates. We classify AT2020fiz as a Type IIP supernova observed ~10 days after explosion, and we propose ZTF19abdkelq as a likely Type Ia SN caught ~40 days after maximum light. ZTF photometry of these two sources are consistent with their classification as supernovae. Beside these two objects, we have confirmed several ZTF transients as variable AGNs based on their spectral appearance, and also determined the host galaxy types for several other ZTF transients.
