Matches in SemOpenAlex for { <https://semopenalex.org/work/W2282410829> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2282410829 abstract "The source PG 1553+113 is a well-known TeV emitter, likely located at redshift 0.4-0.5 (Danforth et al. 2010). Its state has been monitored by MAGIC since February 2005. In March 2012, a high emission state at VHE, X-ray, optical, and infrared wavelengths was reported (ATel #3977). During the night of April 19-20th (MJD 56037), the source was observed by MAGIC for a total of 1.1 hour of good quality data. A strong signal corresponding to a statistical significance above 15 standard deviations in the VHE range was detected. The level obtained with the preliminary analysis reaches the Crab Nebula flux level at ~100 GeV. It is the highest state of PG 1553+113 ever detected at these energies. The mean flux at 100 GeV measured by MAGIC between 2005 and 2009 was ~50% of the Crab Nebula flux (J. Aleksic et al., 2012). Follow up observations carried out in the following nights confirm that the source persists in this high state. Simultaneous optical observations performed in the R band by the KVA telescope also show increased emission. The maximum flux reached is 13.14 ± 0.01 mJy (MJD 56040). The source is brighter than during the high state reported one month ago (12.2 ± 0.2 mJy ; http://users.utu.fi/kani/1m/PG_1553+113_jy.html ). Optical polarimetric observations were taken with the Liverpool telescope as part of a joint observational program with MAGIC. Preliminary photometric observations in the J, H and K bands with the REM telescope show an increasing activity of the source during the last week. In addition, automatic analysis procedures applied to Swift/XRT data collected on April 17th and 21st indicate that the source is also brightening in X rays. The preliminary Swift/XRT lightcurve is publicly available at: http://www.swift.psu.edu/monitoring/data/PG1553+113/lightcurve.png. Dedicated analyses are in progress. Given the high activity detected, we strongly encourage multi-wavelength observations of the source." @default.
- W2282410829 created "2016-06-24" @default.
- W2282410829 creator A5006011938 @default.
- W2282410829 creator A5007829686 @default.
- W2282410829 creator A5038570424 @default.
- W2282410829 creator A5048319015 @default.
- W2282410829 creator A5050428259 @default.
- W2282410829 creator A5059861652 @default.
- W2282410829 creator A5066977521 @default.
- W2282410829 creator A5070838044 @default.
- W2282410829 creator A5079942518 @default.
- W2282410829 creator A5080451941 @default.
- W2282410829 date "2012-01-01" @default.
- W2282410829 modified "2023-10-16" @default.
- W2282410829 title "MAGIC detects an unprecedented high VHE gamma-ray emission from the blazar PG 1553+113" @default.
- W2282410829 hasPublicationYear "2012" @default.
- W2282410829 type Work @default.
- W2282410829 sameAs 2282410829 @default.
- W2282410829 citedByCount "0" @default.
- W2282410829 crossrefType "journal-article" @default.
- W2282410829 hasAuthorship W2282410829A5006011938 @default.
- W2282410829 hasAuthorship W2282410829A5007829686 @default.
- W2282410829 hasAuthorship W2282410829A5038570424 @default.
- W2282410829 hasAuthorship W2282410829A5048319015 @default.
- W2282410829 hasAuthorship W2282410829A5050428259 @default.
- W2282410829 hasAuthorship W2282410829A5059861652 @default.
- W2282410829 hasAuthorship W2282410829A5066977521 @default.
- W2282410829 hasAuthorship W2282410829A5070838044 @default.
- W2282410829 hasAuthorship W2282410829A5079942518 @default.
- W2282410829 hasAuthorship W2282410829A5080451941 @default.
- W2282410829 hasConcept C100752510 @default.
- W2282410829 hasConcept C121332964 @default.
- W2282410829 hasConcept C1276947 @default.
- W2282410829 hasConcept C150846664 @default.
- W2282410829 hasConcept C191897082 @default.
- W2282410829 hasConcept C192562407 @default.
- W2282410829 hasConcept C2776409865 @default.
- W2282410829 hasConcept C2777704519 @default.
- W2282410829 hasConcept C2779496878 @default.
- W2282410829 hasConcept C2780848835 @default.
- W2282410829 hasConcept C33024259 @default.
- W2282410829 hasConcept C44870925 @default.
- W2282410829 hasConcept C68709404 @default.
- W2282410829 hasConcept C7910260 @default.
- W2282410829 hasConcept C98444146 @default.
- W2282410829 hasConceptScore W2282410829C100752510 @default.
- W2282410829 hasConceptScore W2282410829C121332964 @default.
- W2282410829 hasConceptScore W2282410829C1276947 @default.
- W2282410829 hasConceptScore W2282410829C150846664 @default.
- W2282410829 hasConceptScore W2282410829C191897082 @default.
- W2282410829 hasConceptScore W2282410829C192562407 @default.
- W2282410829 hasConceptScore W2282410829C2776409865 @default.
- W2282410829 hasConceptScore W2282410829C2777704519 @default.
- W2282410829 hasConceptScore W2282410829C2779496878 @default.
- W2282410829 hasConceptScore W2282410829C2780848835 @default.
- W2282410829 hasConceptScore W2282410829C33024259 @default.
- W2282410829 hasConceptScore W2282410829C44870925 @default.
- W2282410829 hasConceptScore W2282410829C68709404 @default.
- W2282410829 hasConceptScore W2282410829C7910260 @default.
- W2282410829 hasConceptScore W2282410829C98444146 @default.
- W2282410829 hasLocation W22824108291 @default.
- W2282410829 hasOpenAccess W2282410829 @default.
- W2282410829 hasPrimaryLocation W22824108291 @default.
- W2282410829 hasRelatedWork W1608794883 @default.
- W2282410829 hasRelatedWork W1944227664 @default.
- W2282410829 hasRelatedWork W2005425000 @default.
- W2282410829 hasRelatedWork W2064307980 @default.
- W2282410829 hasRelatedWork W2068614195 @default.
- W2282410829 hasRelatedWork W2069835534 @default.
- W2282410829 hasRelatedWork W2086247295 @default.
- W2282410829 hasRelatedWork W2102848968 @default.
- W2282410829 hasRelatedWork W2104402472 @default.
- W2282410829 hasRelatedWork W2140131843 @default.
- W2282410829 hasRelatedWork W2141145035 @default.
- W2282410829 hasRelatedWork W2158252122 @default.
- W2282410829 hasRelatedWork W2162106564 @default.
- W2282410829 hasRelatedWork W2308345642 @default.
- W2282410829 hasRelatedWork W2761213322 @default.
- W2282410829 hasRelatedWork W2785442869 @default.
- W2282410829 hasRelatedWork W3099105433 @default.
- W2282410829 hasRelatedWork W3099372627 @default.
- W2282410829 hasRelatedWork W3124722386 @default.
- W2282410829 hasRelatedWork W3125872373 @default.
- W2282410829 isParatext "false" @default.
- W2282410829 isRetracted "false" @default.
- W2282410829 magId "2282410829" @default.
- W2282410829 workType "article" @default.
.%20Its%20state%20has%20been%20monitored%20by%20MAGIC%20since%20February%202005.%20In%20March%202012%2C%20a%20high%20emission%20state%20at%20VHE%2C%20X-ray%2C%20optical%2C%20and%20infrared%20wavelengths%20was%20reported%20(ATel%20%233977).%20During%20the%20night%20of%20April%2019-20th%20(MJD%2056037)%2C%20the%20source%20was%20observed%20by%20MAGIC%20for%20a%20total%20of%201.1%20hour%20of%20good%20quality%20data.%20A%20strong%20signal%20corresponding%20to%20a%20statistical%20significance%20above%2015%20standard%20deviations%20in%20the%20VHE%20range%20was%20detected.%20The%20level%20obtained%20with%20the%20preliminary%20analysis%20reaches%20the%20Crab%20Nebula%20flux%20level%20at%20~100%20GeV.%20It%20is%20the%20highest%20state%20of%20PG%201553%2B113%20ever%20detected%20at%20these%20energies.%20The%20mean%20flux%20at%20100%20GeV%20measured%20by%20MAGIC%20between%202005%20and%202009%20was%20~50%25%20of%20the%20Crab%20Nebula%20flux%20(J.%20Aleksic%20et%20al.%2C%202012).%20Follow%20up%20observations%20carried%20out%20in%20the%20following%20nights%20confirm%20that%20the%20source%20persists%20in%20this%20high%20state.%20Simultaneous%20optical%20observations%20performed%20in%20the%20R%20band%20by%20the%20KVA%20telescope%20also%20show%20increased%20emission.%20The%20maximum%20flux%20reached%20is%2013.14%20%C2%B1%200.01%20mJy%20(MJD%2056040).%20The%20source%20is%20brighter%20than%20during%20the%20high%20state%20reported%20one%20month%20ago%20(12.2%20%C2%B1%200.2%20mJy%20%3B%20http%3A%2F%2Fusers.utu.fi%2Fkani%2F1m%2FPG_1553%2B113_jy.html%20).%20Optical%20polarimetric%20observations%20were%20taken%20with%20the%20Liverpool%20telescope%20as%20part%20of%20a%20joint%20observational%20program%20with%20MAGIC.%20Preliminary%20photometric%20observations%20in%20the%20J%2C%20H%20and%20K%20bands%20with%20the%20REM%20telescope%20show%20an%20increasing%20activity%20of%20the%20source%20during%20the%20last%20week.%20In%20addition%2C%20automatic%20analysis%20procedures%20applied%20to%20Swift%2FXRT%20data%20collected%20on%20April%2017th%20and%2021st%20indicate%20that%20the%20source%20is%20also%20brightening%20in%20X%20rays.%20The%20preliminary%20Swift%2FXRT%20lightcurve%20is%20publicly%20available%20at%3A%20http%3A%2F%2Fwww.swift.psu.edu%2Fmonitoring%2Fdata%2FPG1553%2B113%2Flightcurve.png.%20Dedicated%20analyses%20are%20in%20progress.%20Given%20the%20high%20activity%20detected%2C%20we%20strongly%20encourage%20multi-wavelength%20observations%20of%20the%20source.%22){kind=link}