| Telegram Index |
| Telegrams Posted Within the Last 30 Days ( All )
|
66 Selected of 17919 Telegrams
|
| 17919 | X-ray detection of the black hole transient IGR J17091-3624 during its recent optical brightening with Einstein Probe | L. Zhang, Z. Li, A. Marino, F. Coti Zelati, G. Illiano, N. Rea, M. Imbrogno, Y. L. Wang, D. M. Russell,...
22 Jul 2026; 01:24 UT |
| 17918 | Solar activity of the dominant region AR 4493: duration and flares frequency | Costantino Sigismondi
21 Jul 2026; 14:09 UT |
| 17917 | Erratum to ATel #17910 | A. Valcheva, A. Kostov, V. Kozhuharov
21 Jul 2026; 10:16 UT |
| 17916 | Enhanced optical activity of the flat-spectrum radio quasar 4C 10.45 | D. Reinhart, R. Steineke, C. Lorey, S. Ankara, E. Bommert, S. Duerr, O. Domann, M. Feige, R. Goldbach,...
21 Jul 2026; 09:17 UT |
| 17915 | Detection and Monitoring of Fragments of Comet C/2023 R1 (PANSTARRS) | Nick James, Helen Usher, Veronika Parakonna, David Benjamin, Arthur Dragomir, Amelia Davies, Michael...
20 Jul 2026; 19:17 UT |
| 17914 | Independent Discovery of a Probable Nova in M31, AT 2026vdo | K. Hornoch, H. Kucakova, K. Honkova, A. W. Shafter
20 Jul 2026; 19:10 UT |
| 17913 | Cancellation of the planned NuSTAR high-cadence monitoring campaign of EP J223759.5+531421 | George Younes
20 Jul 2026; 17:15 UT |
| 17912 | Tomo-e Gozen Discovered a Large-Amplitude CV | Taiga Sasaoka, Kenta Taguchi, Keisuke Isogai
20 Jul 2026; 15:32 UT |
| 17911 | Cen X-4 stirs again: XB-NEWS catches new activity in the optical 6 years after the misfired event | M. C. Baglio, M. M. Messa, D. M. Russell, D. M. Bramich, G. Illiano, K. Alabarta, Y. J. Yang, P. Saikia,...
20 Jul 2026; 15:26 UT |
| 17910 | Independent Discovery of a Probable Nova in M31 | A. Valcheva, A. Kostov, V. Kozhuharov
20 Jul 2026; 11:54 UT |
| 17909 | Accurate position and spin-down measurement of the magnetar candidate EP J223759.5+531421 | F. Coti Zelati, G. L. Israel, N. Rea, Y. L. Wang, A. Borghese, H. Yang, X. Mao, C. Jin, H. Sun, W. Yuan,...
20 Jul 2026; 08:27 UT |
| 17908 | SRG/ART-XC confirmation of magnetar nature of EP J223759.5+531421 (EP260628c) | S. Molkov, A. Lutovinov, A. Tkachenko, Z. Li, I. Lapshov
20 Jul 2026; 05:10 UT |
| 17907 | New faint optical activity in the black hole transient IGR J17091-3624 | D. M. Russell, D. M. Bramich, D. Akl, Y. J. Yang, A. Marino, P. Saikia, M. C. Baglio, K. Alabarta, F....
19 Jul 2026; 18:46 UT |
| 17906 | Gaia24amv: SU UMa-type dwarf nova near the period gap | D. Yu. Rusanova, A. O. Simon, W. Ogloza, N. Karaman, A. Yu. Korosko, P. J. Mikolajczyk, L. Wyrzykowski,...
19 Jul 2026; 12:15 UT |
| 17905 | Photometric observations of Gaia16adj/ASASSN-14eg in superoutburst | F.-J. Hambsch, D. Yu. Rusanova, P. J. Mikolajczyk, L. Wyrzykowski, A. O. Simon, K. Kotysz
17 Jul 2026; 19:14 UT |
| 17904 | Planned NuSTAR monitoring campaign of the magnetar candidate EP J223759.5+531421 (EP260628c) | G. Younes
17 Jul 2026; 19:05 UT |
| 17903 | Chandra detection of new outburst by XMMU J174445.5-295044 | Craig Heinke, Farhad Yusef-Zadeh
17 Jul 2026; 16:58 UT |
| 17902 | Spectroscopic Classification of Astrophysical Transients with the Lick Shane Telescope | R. Kaur, J. Karcheski, R. J. Foley, T. Dass, C. O. Maitland-Lewis, J. V. Mortensen
16 Jul 2026; 22:30 UT |
| 17901 | Fermi-LAT detection of renewed gamma-ray activity from the FSRQ 3C 395 | E. Bronzini on behalf of the Fermi Large Area Telescope Collaboration
16 Jul 2026; 18:18 UT |
| 17900 | Evolution of Nova Aql 2026 (V2104 Aql) from discovery to the t2 phase | U. Munari, S. Dallaporta, A. Maitan, G. L. Righetti, A. Vagnozzi and P. Valisa
16 Jul 2026; 15:02 UT |
| 17899 | Rapid optical fading of S4 0954+65 following recent flaring activity | E. Zaharieva, B. Aleksandrov, V. Efremov, M. Petrova, A. Todorov, E. Ovcharov
16 Jul 2026; 13:01 UT |
| 17898 | A previously FRB discovered in the FAST POP survey (ATeL# 17837) is repeating | L. Qian, Z. Pan, Y. C. Zhang, P. Jiang, G. Y. Zhang, L. Y. Wang, X. Y. Zhang, B. Liu, L. Zhao, C. Sun,...
16 Jul 2026; 11:23 UT |
| 17897 | BVRI photometry of B2 1420+326 | E. Zaharieva, B. Aleksandrov, V. Efremov, M. Petrova, A. Todorov, E. Ovcharov
15 Jul 2026; 22:44 UT |
| 17896 | SN 2026sqf: upper limits from an IceCube neutrino search | Yuhua Yao, Anna Franckowiak for the IceCube Collaboration
15 Jul 2026; 21:26 UT |
| 17895 | Fermi-LAT detection of renewed gamma-ray activity from the TeV BL Lac VER J0521+211 | E. Bronzini, P. Monti-Guarnieri, C. Bartolini, G. La Mura, on behalf of the Fermi Large Area Telescope...
15 Jul 2026; 21:09 UT |
| 17894 | Spectroscopic Classification of AT2026rwn with the Lick Shane Telescope | FirstnJ. Karcheski, K. C. Patra, K. W. Davis, R. J. Foley
15 Jul 2026; 20:16 UT |
| 17893 | Addendum: Low frequency upper limits on continuum radio emission from EP J223759.5+531421 (EP260628c) | Pulak Mohapatra, Yogesh Maan, Yash Bhusare, Chandreyee Maitra, Joeri van Leeuwen, Banshi Lal
15 Jul 2026; 09:44 UT |
| 17892 | Low frequency upper limits on continuum radio emission from EP J223759.5+531421 (EP260628c) | Pulak Mohapatra, Yogesh Maan, Yash Bhusare, Chandreyee Maitra, Joeri van Leeuwen, Banshi Lal
15 Jul 2026; 09:37 UT |
| 17891 | Einstein Probe detection of a new X-ray outburst from LMXB GRS 1747-312 in Terzan 6 | X. H. Tang, Y. L. Hua, M. J. Liu, W. D. Zhang on behalf of the Einstein Probe team
14 Jul 2026; 09:50 UT |
| 17890 | Fermi-LAT detection of enhanced gamma-ray activity from the FSRQ B3 0227+403 | F. Casaburo, S. Ciprini, on behalf of the Fermi Large Area Telescope Collaboration
13 Jul 2026; 21:42 UT |
| 17889 | Detection of superhumps during the superoutburst of Gaia19ati/ASASSN-15pa | A. O. Simon, J. Hambsch, D. Yu. Rusanova, P. J. Mikolajczyk, L. Wyrzykowski, K. Kotysz
13 Jul 2026; 17:01 UT |
| 17888 | Radio Detection of SN 2001ig in NGC 7424 with uGMRT Band 4 at 650 MHz | Meghamala Bandyopadhyay, Parth Sarfare, Akshat Singhal, Alak Ray, and Avinash Deshpande
13 Jul 2026; 16:31 UT |
| 17887 | Spectroscopic confirmation of TCP J02191736+2857158 as a WZ Sge-type dwarf nova | Keisuke Isogai
12 Jul 2026; 19:38 UT |
| 17886 | AT2026stb is a Galactic nova in Scutum | Laura Chomiuk, Jay Strader
12 Jul 2026; 15:10 UT |
| 17885 | EP260628c/EP J223759.5+531421: NOT optical upper limit | S. Q. Jiang, Z. P. Zhu, J. An, X. Liu, L. B. He, D. Xu, S. Y. Fu, J. P.U. Fynbo, V. Vuolteenaho
12 Jul 2026; 08:07 UT |
| 17884 | Exceptionally high optical state of the blazar B2 1420+326 | Rumen Bachev, IA-NAO, BAS
11 Jul 2026; 09:59 UT |
| 17883 | Near-infrared observations of GRS 1915+105 during its unprecedented low-luminosity state | F. Coti Zelati, M. C. Baglio, S. Motta, M. Ferro, A. Marino, N. Rea, T. Munoz-Darias
10 Jul 2026; 13:33 UT |
| 17882 | COLIBRI optical observation of GRS 1915+105 during the unprecedented low luminosity state | Jean-Gregoire Ducoin, Francesco Magnani, Damien Dornic, Stephane Basa, William H. Lee, Camila Angulo,...
9 Jul 2026; 15:53 UT |
| 17881 | Fermi-LAT detection of renewed gamma-ray activity from the FSRQ 3C 273 | P. Monti-Guarnieri, F. Casaburo, on behalf of the Fermi Large Area Telescope Collaboration
9 Jul 2026; 07:45 UT |
| 17880 | The blazar S4 0954+65: the new activity period after 15-months of quiet state | V. V. Vlasyuk, O. I. Spiridonova
6 Jul 2026; 23:05 UT |
| 17879 | Solar flaring after the maximum of the cycle XXV: the case of highly flaring AR 4479 | Costantino Sigismondi Virginio Oldani
6 Jul 2026; 22:06 UT |
| 17878 | ASASSN-26dt: an SMC Nova with a Luminous Progenitor and CSM | L. Chomiuk, J, Strader, A. Crossland, R. Kyer, P. Craig, K. Z. Stanek
6 Jul 2026; 14:10 UT |
| 17877 | GTC/EMIR near-infrared observations of the magnetar candidate EP J223759.5+531421 | F. Coti Zelati, N. Rea, Y. L. Wang, A. Marino, M. Imbrogno, H. Yang, C. Jin, H. Sun, W. Yuan, H. Feng,...
6 Jul 2026; 13:36 UT |
| 17876 | SVOM/MXT observations of EP J223759.5+531421 | Diego Gotz, Lin Lin, Lian Tao, Alexis Coleiro, Edoardo Arrigoni, Zexi Li Liang Zhang
6 Jul 2026; 09:17 UT |
| 17875 | EP260628c/EP J223759.5+531421: Optical Upper limits with Kinder observations | C.-H. Lai, A. Aryan, A. K. H. Kong, T.-W. Chen, W.-J. Hou, S. J. Smartt, J. Gillanders, S. Yang, A. Sankar....
6 Jul 2026; 08:13 UT |
| 17874 | Follow-up of the ongoing exceptional flare of the FSRQ B2 1420+326 in the R and V optical bands | Alessandro Marchini ; Leonardo Stiaccini, Gaia Verna, University of Siena - Italy); Simone Leonini, Massimo...
6 Jul 2026; 00:30 UT |
| 17873 | OQ 334 has reached a new maximum optical magnitude of brighter than 13 mag in the R-band | S. Krauth, S. Ankara, L. Neisser, M. Grischy, J. Meiler, E. Bommert, S. Duerr, O. Domann, R. Goldbach,...
5 Jul 2026; 13:23 UT |
| 17872 | GMRT non-detection of pulsed radio emission from EP J223759.5+531421 (EP260628c) | Yogesh Maan, Pulak Mohapatra, Chandreyee Maitra, Joeri van Leeuwen, Banshi Lal, Yash Bhusare
5 Jul 2026; 08:52 UT |
| 17871 | AT2026rdg is a heavily reddened Nova in its early phase | S. Basa, C. Adami, M. Dennefeld
3 Jul 2026; 17:40 UT |
| 17870 | Einstein Probe discovery of a new magnetar candidate in outburst: EP J223759.5+531421 (EP260628c) | N. Rea, F. Coti Zelati, Y. L. Wang, H. Yang, X. Mao, C. Jin, H. Sun, W. Yuan, C. Dai, H. Feng, L. Tao,...
3 Jul 2026; 12:47 UT |
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| 17869 | Einstein Probe confirms the unprecedented low luminosity state of GRS 1915+105 | A. Marino, N. Rea, F. Coti Zelati, S. Motta, R. Fender, K. J. Zhang, D. Zhu, J. P. Chen, W. Chen, Y....
3 Jul 2026; 06:08 UT |
| 17868 | Spectroscopic Classification of AT 2026rdg=ZTF26abemjfk as a Classical Nova | Yusuke Tampo
2 Jul 2026; 22:35 UT |
| 17867 | Spectroscopy and photometry of AT 2026rdg, a highly reddened FeII-type nova | U. Munari, P. Valisa, S. Dallaporta, and A. Maitan
2 Jul 2026; 22:34 UT |
| 17866 | MAXI/GSC detection of an X-ray flare from UX Ari on 2026-06-25 UT | H. Ogaki, Y. Ishihara, M. Uenishi, H. Negoro, M. Nakajima, T. Mihara, K. Saito, T. Yokoyama, M. Wada,...
2 Jul 2026; 15:43 UT |
| 17865 | MeerKAT observes the radio fading of GRS 1915+105 to its lowest luminosity level since discovery | S. Motta, R. Fender for the X-KAT collaboration, A. Marino, F. Carotenuto, M. C. Baglio, J. van den...
2 Jul 2026; 09:49 UT |
| 17864 | Fermi-LAT detection of enhanced gamma-ray activity from the FSRQ PKS 1046-409 | P. Monti-Guarnieri, S. Wagner, C. C. Cheung, on behalf of the Fermi Large Area Telescope...
2 Jul 2026; 08:13 UT |
| 17863 | Correction to Atel #17856: Spectroscopic Confirmation and Physical Characterization of the Most Probable Host Galaxy of Repeating FRB 20251229A | Mohit Bhardwaj, Aida Kirichenko, Ashwin Kharat, Ajay Kumar
1 Jul 2026; 18:18 UT |
| 17862 | Optical polarization of the central and outer coma of the short-periodical comet 10P/Tempel 2 | Christian Woehler
1 Jul 2026; 10:35 UT |
| 17861 | Four solar flares from four different regions and X1 flare culminates the solar activity on 30 June 2026 | Costantino Sigismondi
30 Jun 2026; 23:54 UT |
| 17860 | A flare of the H2O maser W31(1) | Ashimbaeva, Nuriya, Lekht, Evgeny, Shoutenkov, Vladimir
30 Jun 2026; 23:43 UT |
| 17859 | EP260628c: Einstein Probe detection of an X-ray transient | H. N. Yang, X. Mao, C. C. Jin, C. Y. Dai on behalf of the Einstein Probe team
30 Jun 2026; 09:07 UT |
| 17858 | MAXI/GSC detection of the onset of an X-ray outburst from the Be/X-ray binary pulsar 4U 0115+63 | M. Uenishi, M. Serino, M. Nakajima, H. Negoro, K. Saito, T. Yokoyama, M. Wada, T. Mihara, T. Tamagawa,...
29 Jun 2026; 10:03 UT |
| 17857 | Discovery of an Apparent Nova Positionally Coincident with G170 in M31, M31N 2026-06c | K. Hornoch, H. Kucakova, A. W. Shafter
28 Jun 2026; 11:34 UT |
| 17856 | Spectroscopic Confirmation and Physical Characterization of the Most Probable Host Galaxy of Repeating FRB 20251229A | Mohit Bhardwaj, Aida Kirichenko, Ashwin Kharat, Ajay Kumar
27 Jun 2026; 18:29 UT |
| 17855 | Apparent Activity of Centaur 2024 XE22 | Quanzhi Ye, James M. Bauer, Tony Farnham, Peter VanWylen
25 Jun 2026; 18:33 UT |
| 17854 | Fermi-LAT detection of increasing GeV gamma-ray activity from blazars 4C +33.06 and OQ 334 | Stefano Ciprini on behalf of the Fermi Large Area Telescope Collaboration
23 Jun 2026; 17:56 UT |
