DRAFT
2024-12-28 17:35:32
Type: Object/s-Data/Analysis
Bibcode: 2024TNSAN.391....1B
DAO Photometric Follow Up of selected Optical Transients (Aug. 2024)
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 during the August 2024 observing run.
Follow-up photometry of selected transients
Object UT g (SDSS) g-r Presumed host z (published)
2024rcc 2024 08 09.461 19.72 (0.08) +0.17 (0.13) SDSS J233011.21+182611.9 0.595 p
2024rjb 2024 08 08.273 19.54 (0.06) +0.70 (0.08) WISEA J200619.77+220054.8  
2024rjs 2024 08 07.211 18.64 (0.03) +0.53 (0.05) WISEA J181044.23+370142.7 0.094 s
2024rjw 2024 08 07.336 18.52 (0.02) +0.21 (0.03) WISEA J210309.52+204523.5 0.024 s
2024rke 2024 08 07.398 19.09 (0.03) +0.45 (0.05) SDSS J221350.01+065147.3 0.075 p
2024rlv 2024 08 08.461 19.06 (0.02) +0.53 (0.03) SDSS J233252.04+343822.2 0.080 p
2024rlw 2024 08 07.274 19.45 (0.02)   WISEA J204647.84+132357.2  
2024rnj 2024 08 08.336 20.33 (0.07) +0.48 (0.09) SDSS J212914.65+180358.1 0.170 p

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 2024rcc 23:30:11.207 +18:26:12.54 SN Ia-91T-like 0.14 23:30:11.207 +18:26:12.54 SN Ia-91T-like 0.14
TNS 2024rjb 20:06:20.137 +22:00:55.73 20:06:20.137 +22:00:55.73
TNS 2024rjs 18:10:44.307 +37:01:42.94 18:10:44.307 +37:01:42.94
TNS 2024rjw 21:03:10.107 +20:45:02.58 SN Ic 0.02 21:03:10.107 +20:45:02.58 SN Ic 0.02
TNS 2024rke 22:13:50.054 +06:51:46.81 SN Ia 0.06 22:13:50.047 +06:51:46.96 SN Ia 0.06
TNS 2024rlv 23:32:52.065 +34:38:22.45 23:32:52.065 +34:38:22.45
TNS 2024rlw 20:46:48.130 +13:23:54.14 20:46:48.130 +13:23:54.14
TNS 2024rnj 21:29:14.647 +18:03:58.88 21:29:14.647 +18:03:58.88

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