VLBI observations of the radio counterpart of IGR J20187+4041/2MASX J20183871+4041003 in the error box of the gamma-ray source AGL2021+4029/3EG J2020+4017

TREJO, A.; GIACANI, E.; PARAGI, Z.; VAN LANGEVELDE, H.J.; DUBNER, G.; BYKOV, A.

The Astronomer´s Telegram

Año: 2008 p. 1597 - 1597

We report on European VLBI Network (EVN) observations of 2MASX J20183871+4041003, which was earlier detected with the VLA by Dubner et al. (ATel#1518). 2MASX J20183871+4041003 was identified as a counterpart to IGR J2018+4043 (=IGR J20187+4041) by Kennea et al. (ATel #788) and Bykov et al (2006, ApJL 649, L21), where both AGN and X-ray binary interpretations were discussed. IGR J2018+4043 is the only known hard X-ray source near to the so far unidentified EGRET source 3EG J2020+4017.