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.
Source Group: GSNST
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.
| 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 |