Investigating the peculiar emission from the new VHE gamma-ray source H1722+119
Glawion DE; Makariev M; Hahn A; de Almeida UB; Palacio J; Readhead ACS; Stamerra A; Paredes-Fortuny X; Toyama T; Verguilov V; Bernardini E; Dorner D; Rhode W; Ansoldi S; Nishijima K; Bonnoli G; Zanin R; Paneque D; Herrera J; Paoletti R; Dominguez A; Vovk I; Treves A; Hanabata Y; Longo F; Moralejo A; Contreras JL; Maraschi L; Galindo D; Colin P; Mirzoyan R; Tavecchio F; Marcote B; Takalo L; Font L; Ramazani VF; Satalecka K; Giammaria P; Frantzen K; Babic A; Hayashida M; Lopez M; Strzys M; Torres DF; Rosillo MN; Bangale P; Saito T; Paiano S; Covino S; Schweizer T; Terrats DG; Bonnefoy S; Menzel U; Perri L; Snidaric I; Wilhelmi ED; Teshima M; Bednarek W; Di Pierro F; Gora D; Orito R; Richards JL; Nakajima D; D'Ammando F; Poutanen J; Fonseca MV; Mannheim K; Buson S; Blanch O; Cortina J; Elsaesser D; Thaele J; Einecke S; Prester DD; Rico J; Sobczynska D; Chatterjee A; Persic M; La Barbera A; Godinovic N; Mariotti M; Villata M; Puljak I; Hughes G; Lindfors E; Max-Moerbeck W; Martinez M; Ward JE; Garcia JR; Antoranz P; Schultz C; Temnikov P; Ribo M; De Lotto B; Fernandez-Barral A; Lopez RJG; Antonelli LA; Paredes JM; Biasuzzi B; Majumdar P; Moretti E; Kushida J; Nilsson K; Gonzalez JB; Tescaro D; Overkemping A; Terzic T; Sitarek J; Munoz AG; Guberman D; Biland A; Lombardi S; Fruck C; Noda K; Neustroev V; Takami H; Konno Y; Idec W; Moroni PGP; Carosi A; Palatiello M; Hovatta T; Steinbring T; Barrio JA; Berdyugin A; Prandini E; Niedzwiecki A; Pedaletti G; Miranda JM; Will M; Mallot K; Hrupec D; Sillanpaa A; Kubo H; Fidalgo D; Doro M; Clavero R; Dazzi F; Garczarczyk M; Manganaro M; Hadasch D; Lelas D; Doert M; Bretz T; Lopez-Coto R; Mazin D; Raiteri CM; Colombo E; De Angelis A; Ahnen ML; Nogues L; Reinthal R; Maneva G; Wu MH; Kodani K; Hose J; Gaug M; Borracci F; Banerjee B; Verrecchia F; Da Vela P
Investigating the peculiar emission from the new VHE gamma-ray source H1722+119
Glawion DE
Makariev M
Hahn A
de Almeida UB
Palacio J
Readhead ACS
Stamerra A
Paredes-Fortuny X
Toyama T
Verguilov V
Bernardini E
Dorner D
Rhode W
Ansoldi S
Nishijima K
Bonnoli G
Zanin R
Paneque D
Herrera J
Paoletti R
Dominguez A
Vovk I
Treves A
Hanabata Y
Longo F
Moralejo A
Contreras JL
Maraschi L
Galindo D
Colin P
Mirzoyan R
Tavecchio F
Marcote B
Takalo L
Font L
Ramazani VF
Satalecka K
Giammaria P
Frantzen K
Babic A
Hayashida M
Lopez M
Strzys M
Torres DF
Rosillo MN
Bangale P
Saito T
Paiano S
Covino S
Schweizer T
Terrats DG
Bonnefoy S
Menzel U
Perri L
Snidaric I
Wilhelmi ED
Teshima M
Bednarek W
Di Pierro F
Gora D
Orito R
Richards JL
Nakajima D
D'Ammando F
Poutanen J
Fonseca MV
Mannheim K
Buson S
Blanch O
Cortina J
Elsaesser D
Thaele J
Einecke S
Prester DD
Rico J
Sobczynska D
Chatterjee A
Persic M
La Barbera A
Godinovic N
Mariotti M
Villata M
Puljak I
Hughes G
Lindfors E
Max-Moerbeck W
Martinez M
Ward JE
Garcia JR
Antoranz P
Schultz C
Temnikov P
Ribo M
De Lotto B
Fernandez-Barral A
Lopez RJG
Antonelli LA
Paredes JM
Biasuzzi B
Majumdar P
Moretti E
Kushida J
Nilsson K
Gonzalez JB
Tescaro D
Overkemping A
Terzic T
Sitarek J
Munoz AG
Guberman D
Biland A
Lombardi S
Fruck C
Noda K
Neustroev V
Takami H
Konno Y
Idec W
Moroni PGP
Carosi A
Palatiello M
Hovatta T
Steinbring T
Barrio JA
Berdyugin A
Prandini E
Niedzwiecki A
Pedaletti G
Miranda JM
Will M
Mallot K
Hrupec D
Sillanpaa A
Kubo H
Fidalgo D
Doro M
Clavero R
Dazzi F
Garczarczyk M
Manganaro M
Hadasch D
Lelas D
Doert M
Bretz T
Lopez-Coto R
Mazin D
Raiteri CM
Colombo E
De Angelis A
Ahnen ML
Nogues L
Reinthal R
Maneva G
Wu MH
Kodani K
Hose J
Gaug M
Borracci F
Banerjee B
Verrecchia F
Da Vela P
OXFORD UNIV PRESS
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042715590
https://urn.fi/URN:NBN:fi-fe2021042715590
Tiivistelmä
The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed the BL Lac object H1722+119 (redshift unknown) for six consecutive nights between 2013 May 17 and 22, for a total of 12.5 h. The observations were triggered by high activity in the optical band measured by the KVA (Kungliga Vetenskapsakademien) telescope. The source was for the first time detected in the very high energy (VHE, E > 100 GeV) gamma-ray band with a statistical significance of 5.9s. The integral flux above 150 GeV is estimated to be (2.0 +/- 0.5) per cent of the Crab nebula flux. We used contemporaneous high energy (HE, 100 MeV < E < 100 GeV) gamma-ray observations from Fermi-Large Area Telescope to estimate the redshift of the source. Within the framework of the current extragalactic background light models, we estimate the redshift to be z = 0.34 +/- 0.15. Additionally, we used contemporaneous X-ray to radio data collected by the instruments on board the Swift satellite, the KVA, and the Owens Valley Radio Observatory telescope to study multifrequency characteristics of the source. We found no significant temporal variability of the flux in the HE and VHE bands. The flux in the optical and radio wavebands, on the other hand, did vary with different patterns. The spectral energy distribution of H1722+119 shows surprising behaviour in the similar to 3 x 10(14)-10(18) Hz frequency range. It can be modelled using an inhomogeneous helical jet synchrotron self-Compton model.
Kokoelmat
- Rinnakkaistallenteet [19207]