| Internal name | XM104MZ |  |
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| RA/DEC (2000) | 17 27 43.32 -16 12 18.8 | ||
| Discovery date (UT) | 2023-08-24.60929 | ||
| Discovery Mag | 14.0CV | ||
| Host name | Oph | ||
| Host Redshift | |||
| Type | LMXB/BHXB/XN | ||
| Redshift | |||
| Other name/s | AT 2023qql TCP J17274332-1612188 Swift J1727.8-1613 GRB 230824A |
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| References | VSX | Discovery image taken around 2023 Aug. 24.60929 UT at N89 | PanSTARRS-1 Image |
| Reporter/s | Mi Zhang, Wenjie Zhou, Guoyou Sun, Jingyuan Zhao, Yanxi Li, Xing Gao (Xingming Obs.) | ||
| Remarks | UG candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/xm104mz.html | ||
| Discovery report | We report the discovery of a possible UG at 14.0CV on several 60-s survey images (limiting mag about 19.5CV) taken by Xing Gao at Xingming Observatory “#”2 (N89) around 2023 Aug. 24.60929 UT using a unfiltered CCD (+0.5m f/4 reflector). The transient approximately located at RA= 17h27m43.32s, DEC = -16d12m18.8s (equinox 2000.0). | ||
| ATel | ATel#16205: MAXI/GSC detection of a new hard X-ray transient Swift J1727.8-1613 (GRB 230824A) ATel#16206: MAXI/GSC observations of the new X-ray transient Swift J1727.8-1613 (GRB 230824A) ATel#16207: NICER detection of Swift J1727.8-1613 (GRB 230824A) ATel#16208: Optical spectroscopy of Swift J1727.8-1613 confirms a new low-mass X-ray binary hosting a black hole candidate ATel#16209: ATLAS constraints on the optical onset of new X-ray transient Swift J1727.8-1613 ATel#16210: LEIA observations of Swift J1727.8-1613 ATel#16211: VLA radio detection of the new black hole X-ray binary candidate Swift J1727.8-1613 ATel#16215: Swift J1727.8-1613 reaches 7.6 Crab with strong QPO in Hard X-rays ATel#16216: GTC optical spectroscopy reveals outflow-related features in Swift J1727.8-1613 ATel#16217: INTEGRAL and SRG/ART-XC observations of the rise of Swift J1727.8-1613 ATel#16219: Preliminary spectral fitting and QPO evolution in NICER observations of black hole candidate Swift J1727.8-1613 ATel#16225: Near-infrared counterpart and optical evolution of the outburst of Swift J1727.8-1613 ATel#16228: Allen Telescope Array Detection of the black hole candidate Swift J1727.8-1613 ATel#16230: Swift J1727.8-1613 absolute flux density and polarization measured with Submillimeter Array at 1.3mm ATel#16231: e-MERLIN observations of Swift J1727.8-1613 ATel#16232: Low-amplitude optical variations of Swift J1727.8-1613 observed with LCO ATel#16235: Detection of QPO in the peak of outburst of black hole candidate Swift J1727.8-1613: AstroSat/LAXPC Observation in Slew Mode ATel#16237: IXPE X-ray polarization observational campaign of Swift J1727.8-1613 ATel#16238: INTEGRAL detects high-energy > 200 keV emission of Swift 1727.8-1613 ATel#16242: IXPE Detects X-ray Polarization from Swift J1727.8-1613 in the 2-8keV Energy Range ATel#16243: Discovery detection of strong QPO (~ 1. 4 Hz) at hard X-rays (>40 keV) with AstroSat during “unusual” peak of black hole transient Swift J1727.8-1613 ATel#16244: Erratum to the ATel #16243: Detection of strong QPO (~ 1. 4 Hz) at hard X-rays (>40 keV) with AstroSat during “unusual” peak of black hole transient Swift J1727.8-1613 ATel#16245: Optical polarization monitoring of the black-hole candidate Swift J1727.8-1613 ATel#16247: NICER observations indicate that Swift J1727.8-1603 is deep in the hard intermediate state and evolving towards the soft intermediate state |
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| GCN Circulars | 34537. GRB 230824A: Swift detection of a burst 34540. GRB 230824A is likely a Galactic Transient: Swift J1727.8-1613 34542. Trigger 1186982: Swift detection of Swift J1727.8-1613 (AKA GRB 230824A) 34543. GRB 230824A: AKO Optical Afterglow Candidate 34544. MAXI/GSC detection of Swift J1727.8-1613 (GRB 230824A) 34547. Trigger 1187142: Swift detection of Swift J1727.8-1613 (AKA GRB 230824A) 34549. NICER detection of Swift J1727.8-1613 (GRB 230824A) 34554. Trigger 1187203: Swift detection of Swift J1727.8-1613 (AKA GRB 230824A) 34555. Trigger 1187207: Swift detection of Swift J1727.8-1613 (AKA GRB 230824A) 34556. Swift J1727.8-1613 (GRB 230824A): Skynet Optical Observations 34557. Trigger 1187225: Swift detection of Swift J1727.8-1613 (AKA GRB 230824A) 34561. GRB 230824A: AKO Photometric Follow-up Observations 34562. Swift J1727.8-1613 (GRB 230824A): Bassano Bresciano Observatory optical observations 34566. Swift J1727.8-1613 (GRB 230824A): GAD Observatory La Spezia – optical observations 34570. Swift J1727.8-1613 (GRB 230824A): Leavitt Observatory optical observations 34573. Swift J1727.8-1613 (GRB 230824A): Montarrenti Observatory photometric observations 34577. Swift J1727.8-1613 (GRB 230824A): Osservatorio Astronomico “Nastro Verde” optical observations |
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| Comments | |||
| XM104MZ C2023 08 24.60929 17 27 43.32 -16 12 18.8 14.0CV N89 XM104MZ C2023 08 24.61431 17 27 43.32 -16 12 18.9 14.0CV N89 XM104MZ C2023 08 24.61527 17 27 43.33 -16 12 18.8 14.0CV N89 … XM104MZ C2023 08 24.64912 17 27 43.33 -16 12 18.8 13.9CV N89 XM104MZ C2023 08 24.65009 17 27 43.33 -16 12 18.8 13.8CV N89 XM104MZ C2023 08 24.65105 17 27 43.32 -16 12 18.7 13.9CV N89 |
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| XM104MZ C2023 08 25.63081 17 27 43.32 -16 12 18.8 13.3CV N89 XM104MZ C2023 08 25.63168 17 27 43.33 -16 12 18.8 13.3CV N89 XM104MZ C2023 08 25.63255 17 27 43.34 -16 12 18.9 13.2CV N89 … XM104MZ C2023 08 25.72050 17 27 43.35 -16 12 18.8 13.4CV N89 XM104MZ C2023 08 25.72102 17 27 43.35 -16 12 18.6 13.4CV N89 XM104MZ C2023 08 25.72154 17 27 43.34 -16 12 18.5 13.4CV N89 |
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| XM104MZ C2023 08 25.63639 17 27 43.36 -16 12 17.1 13.3 g’ N88 XM104MZ C2023 08 25.63731 17 27 43.36 -16 12 19.0 13.1 r’ N88 XM104MZ C2023 08 25.63832 17 27 43.31 -16 12 19.2 13.1 i’ N88 XM104MZ C2023 08 25.63924 17 27 43.33 -16 12 19.5 13.5 B N88 XM104MZ C2023 08 25.64014 17 27 43.30 -16 12 19.3 13.1 V N88 … XM104MZ C2023 08 25.70480 17 27 43.30 -16 12 19.2 13.1 r’ N88 XM104MZ C2023 08 25.70566 17 27 43.25 -16 12 18.2 13.1 i’ N88 XM104MZ C2023 08 25.70655 17 27 43.30 -16 12 18.7 13.5 B N88 XM104MZ C2023 08 25.70740 17 27 43.24 -16 12 18.5 13.2 V N88 XM104MZ C2023 08 25.70833 17 27 43.36 -16 12 19.1 13.3 g’ N88 |
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| XM104MZ C2023 08 26.59302 17 27 43.33 -16 12 18.8 12.9CV N89 XM104MZ C2023 08 26.59354 17 27 43.32 -16 12 18.9 12.9CV N89 XM104MZ C2023 08 26.59406 17 27 43.33 -16 12 19.0 12.9CV N89 … XM104MZ C2023 08 26.72068 17 27 43.32 -16 12 19.1 13.0CV N89 XM104MZ C2023 08 26.72120 17 27 43.35 -16 12 18.2 13.1CV N89 XM104MZ C2023 08 26.72172 17 27 43.36 -16 12 18.6 13.0CV N89 |
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| XM104MZ C2023 08 26.59258 17 27 43.32 -16 12 19.1 12.8 r’ N88 XM104MZ C2023 08 26.59346 17 27 43.31 -16 12 19.3 12.9 i’ N88 XM104MZ C2023 08 26.59440 17 27 43.32 -16 12 19.2 13.1 B N88 XM104MZ C2023 08 26.59527 17 27 43.34 -16 12 19.7 12.9 V N88 XM104MZ C2023 08 26.59611 17 27 43.32 -16 12 19.3 12.9 g’ N88 … XM104MZ C2023 08 26.68134 17 27 43.44 -16 12 19.1 12.9 r’ N88 XM104MZ C2023 08 26.68222 17 27 43.25 -16 12 18.7 12.7 i’ N88 XM104MZ C2023 08 26.68311 17 27 43.47 -16 12 18.8 13.3 B N88 XM104MZ C2023 08 26.68398 17 27 43.52 -16 12 18.3 12.8 V N88 XM104MZ C2023 08 26.68565 17 27 43.39 -16 12 19.1 12.9 g’ N88 |
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| XM104MZ C2023 08 30.58242 17 27 43.32 -16 12 18.9 13.0CV N89 XM104MZ C2023 08 30.58294 17 27 43.33 -16 12 18.8 13.0CV N89 XM104MZ C2023 08 30.58346 17 27 43.34 -16 12 18.8 13.0CV N89 … XM104MZ C2023 08 30.70983 17 27 43.33 -16 12 19.5 13.3CV N89 XM104MZ C2023 08 30.71035 17 27 43.33 -16 12 19.0 13.3CV N89 XM104MZ C2023 08 30.71087 17 27 43.28 -16 12 18.2 13.4CV N89 |
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| XM104MZ C2023 08 30.58112 17 27 43.33 -16 12 19.0 12.9 g’ N88 XM104MZ C2023 08 30.58186 17 27 43.43 -16 12 18.9 12.9 r’ N88 XM104MZ C2023 08 30.58263 17 27 43.30 -16 12 18.9 12.8 i’ N88 XM104MZ C2023 08 30.58346 17 27 43.39 -16 12 19.6 13.4 B N88 XM104MZ C2023 08 30.58421 17 27 43.41 -16 12 18.6 13.2 V N88 … XM104MZ C2023 08 30.63645 17 27 43.18 -16 12 18.8 12.9 r’ N88 XM104MZ C2023 08 30.63722 17 27 43.46 -16 12 17.6 13.0 i N88 XM104MZ C2023 08 30.63802 17 27 43.38 -16 12 19.2 13.4 B N88 XM104MZ C2023 08 30.63882 17 27 43.31 -16 12 19.9 13.0 V N88 XM104MZ C2023 08 30.63961 17 27 43.31 -16 12 19.4 13.0 g’ N88 |
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| XM104MZ C2023 09 03.61439 17 27 43.32 -16 12 18.9 13.1CV N89 XM104MZ C2023 09 03.61491 17 27 43.33 -16 12 18.7 13.1CV N89 XM104MZ C2023 09 03.61543 17 27 43.33 -16 12 18.9 13.1CV N89 … XM104MZ C2023 09 03.67848 17 27 43.34 -16 12 18.6 13.2CV N89 XM104MZ C2023 09 03.67900 17 27 43.34 -16 12 18.6 13.2CV N89 XM104MZ C2023 09 03.67953 17 27 43.34 -16 12 18.6 13.2CV N89 |
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| XM104MZ C2023 09 06.58920 17 27 43.32 -16 12 18.9 13.1CV N89 XM104MZ C2023 09 06.58972 17 27 43.32 -16 12 18.9 13.1CV N89 XM104MZ C2023 09 06.59024 17 27 43.34 -16 12 18.9 13.1CV N89 … XM104MZ C2023 09 06.66898 17 27 43.34 -16 12 18.9 13.1CV N89 XM104MZ C2023 09 06.66949 17 27 43.33 -16 12 18.8 13.2CV N89 XM104MZ C2023 09 06.67003 17 27 43.34 -16 12 18.6 13.2CV N89 |
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| XM104MZ C2023 09 09.64561 17 27 43.33 -16 12 19.0 13.5CV N89 XM104MZ C2023 09 09.64613 17 27 43.32 -16 12 19.0 13.5CV N89 XM104MZ C2023 09 09.64667 17 27 43.34 -16 12 18.8 13.5CV N89 … XM104MZ C2023 09 09.68269 17 27 43.32 -16 12 19.0 13.4CV N89 XM104MZ C2023 09 09.68321 17 27 43.35 -16 12 18.4 13.4CV N89 XM104MZ C2023 09 09.68374 17 27 43.34 -16 12 19.0 13.4CV N89 |
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| XM104MZ C2023 09 10.60619 17 27 43.33 -16 12 18.8 13.2CV N89 XM104MZ C2023 09 10.60671 17 27 43.32 -16 12 18.9 13.2CV N89 XM104MZ C2023 09 10.60725 17 27 43.33 -16 12 18.9 13.2CV N89 … XM104MZ C2023 09 10.66833 17 27 43.33 -16 12 18.9 13.4CV N89 XM104MZ C2023 09 10.66885 17 27 43.35 -16 12 18.5 13.4CV N89 XM104MZ C2023 09 10.66937 17 27 43.34 -16 12 18.8 13.3CV N89 |
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| XM104MZ C2023 09 13.60375 17 27 43.32 -16 12 18.9 13.3CV N89 XM104MZ C2023 09 13.60428 17 27 43.32 -16 12 18.6 13.2CV N89 XM104MZ C2023 09 13.60480 17 27 43.33 -16 12 18.7 13.3CV N89 … XM104MZ C2023 09 13.66738 17 27 43.34 -16 12 18.8 13.4CV N89 XM104MZ C2023 09 13.66791 17 27 43.33 -16 12 18.8 13.4CV N89 XM104MZ C2023 09 13.66843 17 27 43.34 -16 12 18.8 13.3CV N89 |
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