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Second Timescale Photometry of the Very Fast Nova V1674 Her with Palomar Gattini-IR

Hansen, Kylie Y. and De, Kishalay and Ashley, Michael C. B. and Kasliwal, Mansi M. and Delacroix, Alexander and Greffe, Tim and Hale, David and Hankins, Matthew J. and Lau, Ryan and Li, Chengkui and McKenna, Daniel and Moore, Anna M. and Ofek, Eran O. and Smith, Roger M. and Soon, Jamie and Soria, Roberto and Srinivasaragavan, Gokul P. and Travouillon, Tony (2021) Second Timescale Photometry of the Very Fast Nova V1674 Her with Palomar Gattini-IR. Research Notes of the AAS, 5 (10). Art. No. 244. ISSN 2515-5172. doi:10.3847/2515-5172/ac3256.

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We report second-timescale infrared photometry of the nova V1674 Her using Palomar Gattini-IR (PGIR). These observations constitute the first infrared and highest temporal resolution data (resolution of ≈0.84 s) of the nova reported to date. PGIR observed in this fast readout mode for more than an hour on three nights between 3 and 6 days after discovery. We searched for periodic variability using a Lomb–Scargle periodogram and did not detect anything down to a three sigma upper limit of 0.093 mag. This suggests that the periodic variability detected in the nova by Patterson et al. was lower by at least a factor of about 1.65 in the first week of the eruption.

Item Type:Article
Related URLs:
URLURL TypeDescription
Hansen, Kylie Y.0000-0001-5894-4651
De, Kishalay0000-0002-8989-0542
Ashley, Michael C. B.0000-0003-1412-2028
Kasliwal, Mansi M.0000-0002-5619-4938
Hankins, Matthew J.0000-0001-9315-8437
Moore, Anna M.0000-0002-2894-6936
Ofek, Eran O.0000-0002-6786-8774
Smith, Roger M.0000-0001-7062-9726
Soria, Roberto0000-0002-4622-796X
Travouillon, Tony0000-0002-7279-3658
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 October 2021; Revised October 2021; Accepted October 2021; Published October 2021.
Group:Astronomy Department
Subject Keywords:Classical novae; Light curves; Time domain astronomy
Issue or Number:10
Record Number:CaltechAUTHORS:20211103-193256222
Persistent URL:
Official Citation:Kylie Y. Hansen et al 2021 Res. Notes AAS 5 244
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:111732
Deposited By: Tony Diaz
Deposited On:03 Nov 2021 19:46
Last Modified:03 Nov 2021 19:46

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