DRAFT
2023-07-21 01:24:48
Type: Object/s-Data/Analysis
Bibcode: 2023TNSAN.209....1K
Multi-Band Follow Up of 27 Optical Transients from 1.82-m Plaskett Telescope at Dominion Astrophysical Observatory.
Authors: M. R. Kendurkar (GSNST) and D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Supernova, Optical, Methods
Abstract:
Here we present multi-band photometric follow up observations of 27 optical transients using 1.82-m Plaskett Telescope (E2V, 4K x 2K CCD) at Dominion Astrophysical Observatory of the National Research Council of Canada.

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").

 

 Name                  UT     u         g     r   u-g       g-r   host_g    z
 2023mlx    2023-07-10.323  ------  20.32  19.97  -------  +0.35  20.21  0.159
 2023mra    2023-07-11.298  ------  19.74  -------  -------  -------  20.19  -------
 2023mqa    2023-07-11.356  ------  19.22  -------  -------  -------  20.03  -------
 2023ixf    2023-07-12.247  13.47  12.29  12.44  +1.18  -0.15  12.21  0.0008
 2023mva    2023-07-15.385  ------  20.51  ------  -------  -------  17.80  0.094
 2023mvy    2023-07-15.308   ------  19.92  ------  -------  -------  --------  0.080
 2023mxn    2023-07-15.445  18.70  18.11  ------  +0.59  -------  15.94  0.032
 2023mzx    2023-07-15.297  ------  19.29  ------  -------  -------  21.40  -------
 2023nbt    2023-07-15.256  ------  19.63  ------  -------  -------  15.59  0.032
 2023ndo    2023-07-15.350  ------  20.74  ------  -------  -------  21.19  -------
 2023mxc    2023-07-16.387  ------  18.81  ------  -------  -------  17.10  0.073
 2023nac    2023-07-16.318  ------  19.99  ------  -------  -------  20.87  -------
 2023naf    2023-07-16.374  ------  18.89  ------  -------  -------  19.57  -------
 2023ncn    2023-07-16.298  ------  19.69  ------  -------  -------  17.73  0.070
 2023ndd    2023-07-16.360  ------  18.06  ------  -------  -------  --------  0.072
 2023neh    2023-07-16.428  ------  19.27  ------  -------  -------  20.40  0.149
 2023neq    2023-07-16.311  ------  19.52  ------  -------  -------  19.49  0.126
 2023ngy    2023-07-17.337  18.34  18.62  18.63  -0.28  -0.01  14.74  0.013
 2023nhb    2023-07-17.391  ------  18.67  18.23  -------  +0.43  17.34  0.106
 2023nii    2023-07-17.419  ------  20.81  ------  -------  -------  17.62  0.080
 2023ixf    2023-07-18.249  13.81  12.52  11.81  +1.29  +0.71  12.21  0.0008
 2023mkb    2023-07-18.359  ------  19.94  ------  -------  -------  --------  0.09
 2023mpu    2023-07-18.415  18.24  17.78  16.99  +0.46  +0.79  15.71  0.042
 2023mpz    2023-07-18.387  ------  16.23  ------  -------  -------  --------  -------
 2023myy    2023-07-18.345  ------  21.16  ------  -------  -------  --------  -------
 2023nfs    2023-07-18.317  ------  19.54  19.27  -------  +0.27  20.48  0.247
 2023njm    2023-07-18.466  ------  18.95  ------  -------  -------  18.36  0.148

 

 

Several different secondary standards were used from SDSS DR16 (Ahumada+, 2020), LAMOST DR7 catalogs (Luo+, 2019), All-sky spectrally matched Tycho2 stars (Pickles+, 2010) and PS1 Survey DR1 (Chambers+, 2016) to perform differential photometry using Image Reduction and Analysis Facility. 

 

 

 

 

 

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 2023mlx 16:58:09.852 +21:34:29.95 16:58:09.852 +21:34:29.95
TNS 2023mra 17:45:13.359 +35:02:21.00 17:45:13.359 +35:02:21.00
TNS 2023mqa 19:46:19.105 +45:25:33.87 WISEA J194619.17+452527.9 19:46:19.105 +45:25:33.87
TNS 2023ixf 14:03:38.562 +54:18:41.94 SN II 0.000804 M101 14:03:38.562 +54:18:41.94 SN II 0.0008
TNS 2023mva 21:49:32.787 +07:43:56.80 21:49:32.787 +07:43:56.80
TNS 2023mvy 18:44:25.517 +45:32:26.15 18:44:25.517 +45:32:26.15
TNS 2023mxn 23:23:45.394 +11:26:19.36 23:23:45.402 +11:26:19.38 SN Ia 0.0411
TNS 2023mzx 17:54:55.819 +26:20:34.38 17:54:55.819 +26:20:34.38
TNS 2023nbt 14:58:59.985 +16:23:34.92 SDSS J145859.75+162335.5 0.03173622 14:58:59.990 +16:23:34.84
TNS 2023ndo 18:36:46.000 +50:07:59.88 18:36:46.000 +50:07:59.88
TNS 2023mxc 21:55:54.826 +24:56:42.72 SDSS J215555.18+245638.8 21:55:54.826 +24:56:42.72 SN Ia 0.09
TNS 2023nac 17:49:38.393 +33:57:39.55 17:49:38.393 +33:57:39.55
TNS 2023naf 20:12:24.269 +06:02:17.77 20:12:24.269 +06:02:17.77
TNS 2023ncn 15:53:54.646 +32:10:56.84 SDSS J155354.94+321057.4 0.07047565 15:53:54.646 +32:10:56.84
TNS 2023ndd 19:04:50.684 +69:53:22.92 19:04:50.685 +69:53:22.94 SN Ia 0.076
TNS 2023neh 23:54:27.123 +12:10:06.80 SDSS J235427.19+121008.2 23:54:27.131 +12:10:06.84
TNS 2023neq 16:11:32.063 +18:33:10.45 SDSS J161132.13+183307.4 16:11:32.063 +18:33:10.45
TNS 2023ngy 22:18:30.183 +29:14:41.10 22:18:30.191 +29:14:41.05 SN II 0.027
TNS 2023nhb 22:43:05.507 +09:42:13.23 22:43:05.507 +09:42:13.23
TNS 2023nii 22:42:21.143 +11:26:46.12 22:42:21.140 +11:26:46.12 SN Ia 0.094
TNS 2023mkb 18:00:27.188 +28:00:11.31 SN Ia 0.09 18:00:27.188 +28:00:11.31 SN Ia 0.09
TNS 2023mpu 23:51:59.499 +33:48:51.78 SDSS J235159.77+334849.0 23:51:59.500 +33:48:51.80 SN IIn 0.04206
TNS 2023mpz 20:20:49.947 +09:29:57.88 SN II 0.005 GALEXASC J202049.64+092955.3 20:20:49.950 +09:29:57.84 SN II 0.005
TNS 2023myy 18:03:06.115 +54:08:52.70 18:03:06.115 +54:08:52.70
TNS 2023nfs 17:20:39.760 +57:22:38.49 SDSS J172039.56+572237.2 17:20:39.760 +57:22:38.49
TNS 2023njm 00:15:11.088 +32:35:38.51 00:15:11.088 +32:35:38.51

Comments