SED Machine Spectra for HO Puppis and V722 Tauri

Creators: Ngeow, Chow-Choong; Lee, Chien-De; Coughlin, Michael W.; Laher, Russ R.

Abstract

We present low-resolution spectra collected with the Spectral Energy Distribution Machine (SEDM) for an IW And-type dwarf nova, HO Puppis, and a Be star, V722 Tauri. The SEDM is an integrated field unit spectrograph mounted on the 60 inch telescope at the Palomar Observatory, with a spectral resolution of R ~ 100 in the optical wavelength range. The Hα emission line was clearly detected for the bright Be star V722 Tauri at ~12.5 mag, but barely detected in the spectra for the ~13.7 mag HO Puppis. Our SEDM observations could be used as guidance for observing similar objects with the SEDM, as well as other R ~ 100 spectrographs, in the future.

Additional Information

© 2021 The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received March 2021; Revised April 2021; Accepted April 2021; Published April 2021. We are thankful for funding from the Ministry of Science and Technology (Taiwan) under the contract 104-2923-M-008-004-MY5, 108-2811-M-008-546 and 109-2112-M-008-014-MY3. M. W. Coughlin acknowledges support from the National Science Foundation with grant No. PHY-2010970. We thank SEDM Czar, J. Sollerman, for the assistance on SEDM observations. The SED Machine is based upon work supported by the National Science Foundation under grant No. 1106171. Based on observations obtained with the Samuel Oschin Telescope 48 inch and the 60 inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under grant No. AST-1440341 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, the University of Washington, Deutsches Elektronen-Synchrotron and Humboldt University, Los Alamos National Laboratories, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, and Lawrence Berkeley National Laboratories. Operations are conducted by COO, IPAC, and UW. Facility: PO:1.5 m. - Software: pysedm (Rigault et al. 2019).

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