DRAFT
2024-12-15 01:56:51
Type: Object/s-Data/Analysis
Bibcode: 2024TNSAN.370....1B
DAO Photometric Follow Up of selected Optical Transients 2024 December
Authors: D. D. Balam (DAO/NRC), M. R. Kendurkar (GSNST)
Source Group: DAO_OTS
Keywords: Photometry
Abstract:
We present multi-band ( SDSS g&r) photometric follow up observations of selected optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of Canada.
Object UT g(SDSS) g-r Presumed Host z (published
2024acqu 2024 12 04.392 18.78 (0.02 +0.77 (0.02) WISEA J065321.67+401432.9 -----
2024acsd 2024 12 04.579 18.85 (0.01) +0.98 (0.02) SDSS J093619.35+234452.5 0.022 s
2024acxs 2024 12 04.454 19.69 (0.03) +0.24 (0.05) SDSS J075726.86+413658.7 0.133 s
2024acxv 2024 12 02.072 18.87 (0.01)   SDSS J222337.71+144113.9 0.146 p
2024aczz 2024 12 04.303 19.01 (0.04) +0.58 (0.05) 2MASS J03413748+3457413  
2024adaw 2024 12 04.330 21.04 (0.14) +1.05 (0.15) SDSS J043512.77+244646.0 0.217 p
2024adbj 2024 12 04.073 20.12 (0.07) +0.59 (0.09) SDSS J001623.82+004730.2 0.152 p
2024addt 2024 12 04.517 18.99 (0.02) +0.13 (0.03) SDSS J080703.92+152238.6 0.188 p
2024adkv 2024 12 09.072 20.67 (0.15) +0.63 (0.20) WISEA J221716.02+433258.6  
2024adrj 2024 12 10.134 19.39 (0.04) +0.34 (0.06) WISEA J224112.45+362623.2  
2024adsr 2024 12 10.073 18.83 (0.05) +1.18 (0.06) SDSS J214442.64+264905.7 0.107 p
2024adts 2024 12 10.198 18.94 (0.02) +0.33 (0.03) WISEA J020732.52+363902.0  
2024advj 2024 12 12,117 17.27 (0.01) +0.36 (0.02) SDSS J005835.36+450018.7 0.017 s

Photometric observations obtained with the 1.82-m Plaskett telescope are differential (SDSS gri filters) and measured from stars in either the Sloan Digital Sky Survey (Skyserver) or the Pan-STARRS release 1 (PS1) Survey - DR1.

The transient host galaxy light in our photometric measurement is minimized via one of two methods: Reference images are downloaded from the PanSTARRS image access (Flewelling, H. A., et al.) and are convolved, using the nightly PSF to match our images. The reference is then subtracted from our co-added images. A secondary photometric standard is defined and retained on the subtracted image using a pixel mask. 

A second method involves creating a model galaxy, using the IRAF artdata packages, scaling it to the images and subtracting the host galaxy. The differential photometry  was then performed using Image Reduction and Analysis Facility (IRAF) (Tody, D. 1986, "The IRAF Data Reduction and Analysis System").

Note:  photometric redshifts are marked 'p' and spectroscopic redshifts are marked 's'. All host redshifts are via the SDSS Skyserver.

 

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024acqu 06:53:21.719 +40:14:33.83 06:53:21.719 +40:14:33.83
TNS 2024acsd 09:36:20.503 +23:45:00.33 SN Ic-BL 0.022 09:36:20.503 +23:45:00.33 SN Ic-BL 0.021748
TNS 2024acxs 07:57:26.681 +41:37:03.03 0.1328776 07:57:26.677 +41:37:02.90
TNS 2024acxv 22:23:37.953 +14:41:19.17 SN Ia 0.062 22:23:37.953 +14:41:19.17 SN Ia 0.062
TNS 2024aczz 03:41:37.482 +34:57:41.08 03:41:37.474 +34:57:40.82
TNS 2024adaw 04:35:12.785 +24:46:46.26 04:35:12.785 +24:46:46.26
TNS 2024adbj 00:16:23.629 +00:47:29.40 00:16:23.629 +00:47:29.40
TNS 2024addt 08:07:04.077 +15:22:42.54 08:07:04.077 +15:22:42.54 SN Ia 0.086
TNS 2024adkv 22:17:15.520 +43:32:48.30 22:17:15.533 +43:32:48.38
TNS 2024adrj 22:41:12.755 +36:26:21.40 22:41:12.755 +36:26:21.40
TNS 2024adsr 21:44:42.526 +26:49:06.03 21:44:42.543 +26:49:06.05 SN Ia 0.064
TNS 2024adts 02:07:32.429 +36:39:00.36 02:07:32.443 +36:39:00.33
TNS 2024advj 00:58:33.386 +45:00:40.63 SN II 0.017409 00:58:33.390 +45:00:40.72 SN IIn 0.017

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