Difference between revisions of "Galactic Working Group"

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'''Back to [[Main_Page|Main page]]''' <br>
 
'''Back to [[Main_Page|Main page]]''' <br>
 
'''Back to [[Data_analysis|Data Analysis]]''' <br>
 
'''Back to [[Data_analysis|Data Analysis]]''' <br>
  
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The Galactic Sources Science Group focuses on the analysis of spectra, time variability, and periodicity of sources in our Galaxy.
+
[[Image:Galactic_intro_image.jpeg|thumb|right|400px|The Galaxy seen from both hemispheres. Credit: Petr Horálek/Juan Carlos Casado]]
  
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'''Current Coordinators''': Rubén López-Coto (Leader), Pol Bordas (Deputy)
+
== Introduction ==
  
−
'''Past Coordinators''': NA
+
The Galactic Working Group focuses on the spectral and morphological study of Galactic gamma-ray sources and their time properties at VHE gamma-rays.
  
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===Members===
+
'''Current Coordinators''': Jakub Jurysek (Leader), Heide Costantini (Deputy)
  
−
'''Join us!'''
+
'''Past Coordinators''': Pol Bordas, Ruben Lopez-Coto
 +
 
 +
== Channels ==
 +
 
 +
 
 +
'''Mailing list: '''[https://ctaoobservatory.sharepoint.com/sites/help/SitePages/Mailing-lists.aspx?csf=1&web=1&e=t3Db5z CTA sharepoint]
 +
 
 +
'''Slack channel: '''[https://app.slack.com/client/T4GSUFW6M/C056T8WJMNV?selected_team_id=T4GSUFW6M CTA North Slack workspace]
  
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Mailing list: [https://portal.cta-observatory.org/_layouts/people.aspx?MembershipGroupId=3839 join here]
 
  
 
== Meetings ==
 
== Meetings ==
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'''[[Galactic_Phone_Calls_2022|Galactic calls (2022)]]'''
 
'''[[Galactic_Phone_Calls_2022|Galactic calls (2022)]]'''
  
−
== Papers ==
+
'''[[Galactic_Phone_Calls_2023|Galactic calls (2023)]]'''
−
[[Papers_Galactic_Working_Group|Paper Status]]
+
 
 +
'''[[Galactic_Phone_Calls_2024|Galactic calls (2024)]]'''
 +
 
 +
== Ongoing Projects ==
 +
 
 +
=== RS Oph ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[RS Oph | Project Webpage]]
 +
 
 +
=== Galactic Center ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[Galactic Center | Project Webpage]]
 +
 
 +
=== Crab Nebula Performance ===
 +
* PI:  Abelardo Moralejo, Rubén López-Coto
 +
* Team: Abelardo Moralejo, Rubén López-Coto, Thomas Vuillaume, Seiya Nozaki, Daniel Morcuende
 +
* Abstract:
 +
CTA (Cherenkov Telescope Array) is the next generation ground-based observatory for gamma-ray astronomy at very-high energies. The Large-Sized Telescope prototype (LST-1) is located at
 +
the Northern site of CTA, on the Canary Island of La Palma. LSTs are designed to provide optimal performance in the lowest part of the energy range covered by CTA, down to ≃20 GeV. LST-1
 +
started performing astronomical observations in November 2019, during its commissioning phase, and it has been taking data since then. We present the first LST-1 observations of the Crab Nebula,
 +
the standard candle of very-high energy gamma-ray astronomy, and use them, together with simulations, to assess the basic performance parameters of the telescope. The data sample consists of
 +
around 36 hours of observations at low zenith angles collected between November 2020 and March 2022. LST-1 has reached the expected performance during its commissioning period - only a minor
 +
adjustment of the preexisting simulations was needed to match the telescope behavior. The energy threshold at trigger level is estimated to be around 20 GeV, rising to ≃30 GeV after data analysis.
 +
Performance parameters depend strongly on energy, and on the strength of the gamma-ray selection cuts in the analysis: angular resolution ranges from 0.12 to 0.40 degrees, and energy resolution
 +
from 15 to 50%. Flux sensitivity is around 1.1% of the Crab Nebula flux above 250 GeV for a 50-h observation (12% for 30 minutes). The spectral energy distribution (in the 0.03 - 30 TeV range) and
 +
the light curve obtained for the Crab Nebula agree with previous measurements, considering statistical and systematic uncertainties. A clear periodic signal is also detected from the pulsar at
 +
the center of the Nebula.
 +
* Link: [[Crab Nebula Performance | Project Webpage]]
 +
 
 +
=== Crab Pulsar ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[Crab Pulsar | Project Webpage]]
 +
 
 +
=== Boomerang SNR ===
 +
* PI: Team: F. Cassol
 +
* Abstract:
 +
* Link: [[Boomerang SNR | Project Webpage]]
 +
 
 +
=== T CrB ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[T CrB | Project Webpage]]
 +
 
 +
=== Geminga Pulsar ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[Geminga | Project Webpage]]
 +
 
 +
=== SGR 1935+2154 ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link: [[SGR1935+2154 | Project Webpage]]
 +
 
 +
=== SN 2023ixf ===
 +
* PI: Alicia López-Oramas; Team: Arnau Aguasca-Cabot, Alessandro Carosi, Giorgio Pirola
 +
* Abstract: Core-collapse SN that exploded in May 2023
 +
* Link: [[SN2023ixf| Project Webpage]]
 +
 
 +
=== SN 2024bch ===
 +
* PI: Alicia López-Oramas; Team: Arnau Aguasca-Cabot, Alessandro Carosi, Andrea Simognini
 +
* Abstract: CCSNe triggered via Galactic ToO. LST-1 only project
 +
* Link: [[SN2024bch| Project Webpage]]
 +
 
 +
=== Cygnus X North region ===
 +
* PI: Team:
 +
* Abstract:
 +
* Link:
 +
 
 +
== Publications ==
 +
[[Papers_Galactic_Working_Group|Papers Status]]
 +
 
 +
[[Proceedings|Proceedings]]
 +
 
 +
== Observed Galactic Sources ==
 +
 
 +
'''Full up-to-date list of all observed sources: ''' [https://www.lst1.iac.es/datacheck/lstosa/LST_source_catalog.html Sources observed with LST-1]
 +
 
 +
'''Sources with total integration time > 5 hours (updated: 17 Jun 2024):'''
 +
 
 +
Crab: 380.0 hours,
 +
LHAASO J2108+5157: 92.6 hours,
 +
Geminga: 77.6 hours,
 +
G106.3+2.7: 72.5 hours,
 +
GalacticCenter: 56.6 hours,
 +
SN_2023ixf: 46.2 hours,
 +
Cygnus_XNorth: 35.6 hours,
 +
PSR J2021+3651: 35.3 hours,
 +
LHAASO J1956+2845: 32.7 hours,
 +
SGR 1935+2154: 31.8 hours,
 +
LHAASO J0341+5258: 28.7 hours,
 +
SDSS J1430+2303: 28.2 hours,
 +
LS I +61 303: 26.2 hours,
 +
V4641: 17.6 hours,
 +
SN2024bch: 16.0 hours,
 +
Nova_RS_Oph: 15.0 hours,
 +
PSR J2032+4127: 14.3 hours,
 +
OffCrab: 11.6 hours,
 +
U Sco: 10.9 hours,
 +
1LHAASO_J1906+0712: 7.4 hours,
 +
G17.8+16.7: 7.2 hours,
 +
PSR J1402+13: 5.7 hours,
 +
WR140: 5.7 hours,
 +
GalCenter_field1: 5.6 hours,
 +
GalCenter_field2: 5.1 hours,
 +
 
 +
== LST Galactic Proposals ==
 +
'''[[LST-1 Galactic Proposals Cycle I|LST-1 Galactic Proposals Cycle I (2023)]]'''
 +
 
 +
'''[[LST-1 Galactic Proposals Cycle II|LST-1 Galactic Proposals Cycle II (2024)]]'''
 +
 
 +
== Cycle II Proposals - accumulated hours (September 2024) ==
 +
[[File:Cycle2_gal_september2024.png|1300px]]
 +
 
 +
== Conferences ==
 +
Please refer to the [https://lstcos.app.tu-dortmund.de/index.php LSTCOS webpage] for a list of upcoming conferences attended by LST members.
 +
 
 +
== Relevant LST-GAL arXiv's (per month) ==
 +
 
 +
'''May 2023: ''' [[File: May2023.pdf | May2023.pdf]]
 +
 
 +
'''June-July 2023: ''' [[File: June-July2023.pdf | June-July2023.pdf]]
 +
 
 +
'''July - September 2023: '''  [[File: July-September2023.pdf | July-September2023.pdf]]
 +
 
 +
'''September - October 2023: ''' [[File: September-October2023.pdf | September-October2023.pdf]]
 +
 
 +
'''February - March 2024: ''' [[File: Papers_feb_march2024.pdf | Papers_feb_march2024.pdf]]
 +
 
 +
'''March - April 2024: ''' [[File: Papers_march_april.pdf | Papers_march_april2024.pdf]]
 +
 
 +
'''May - June 2024: ''' [[File: Papers_may_june2024.pdf | Papers_may_june2024.pdf]]
 +
 
 +
'''June - July 2024: ''' [[File: Papers_june_july2024.pdf | Papers_june_july2024.pdf]]
 +
 
 +
'''August - September 2024: ''' [[File: Papers_aug_sep2024.pdf | Papers_aug_sep2024.pdf]]
  
 
==Useful Tools==
 
==Useful Tools==

Latest revision as of 07:10, 16 October 2024

Back to Main page
Back to Data Analysis

The Galaxy seen from both hemispheres. Credit: Petr Horálek/Juan Carlos Casado

Introduction[edit]

The Galactic Working Group focuses on the spectral and morphological study of Galactic gamma-ray sources and their time properties at VHE gamma-rays.

Current Coordinators: Jakub Jurysek (Leader), Heide Costantini (Deputy)

Past Coordinators: Pol Bordas, Ruben Lopez-Coto

Channels[edit]

Mailing list: CTA sharepoint

Slack channel: CTA North Slack workspace


Meetings[edit]

Galactic calls (2022)

Galactic calls (2023)

Galactic calls (2024)

Ongoing Projects[edit]

RS Oph[edit]

Galactic Center[edit]

Crab Nebula Performance[edit]

  • PI: Abelardo Moralejo, Rubén López-Coto
  • Team: Abelardo Moralejo, Rubén López-Coto, Thomas Vuillaume, Seiya Nozaki, Daniel Morcuende
  • Abstract:
CTA (Cherenkov Telescope Array) is the next generation ground-based observatory for gamma-ray astronomy at very-high energies. The Large-Sized Telescope prototype (LST-1) is located at
the Northern site of CTA, on the Canary Island of La Palma. LSTs are designed to provide optimal performance in the lowest part of the energy range covered by CTA, down to ≃20 GeV. LST-1
started performing astronomical observations in November 2019, during its commissioning phase, and it has been taking data since then. We present the first LST-1 observations of the Crab Nebula,
the standard candle of very-high energy gamma-ray astronomy, and use them, together with simulations, to assess the basic performance parameters of the telescope. The data sample consists of
around 36 hours of observations at low zenith angles collected between November 2020 and March 2022. LST-1 has reached the expected performance during its commissioning period - only a minor
adjustment of the preexisting simulations was needed to match the telescope behavior. The energy threshold at trigger level is estimated to be around 20 GeV, rising to ≃30 GeV after data analysis.
Performance parameters depend strongly on energy, and on the strength of the gamma-ray selection cuts in the analysis: angular resolution ranges from 0.12 to 0.40 degrees, and energy resolution
from 15 to 50%. Flux sensitivity is around 1.1% of the Crab Nebula flux above 250 GeV for a 50-h observation (12% for 30 minutes). The spectral energy distribution (in the 0.03 - 30 TeV range) and
the light curve obtained for the Crab Nebula agree with previous measurements, considering statistical and systematic uncertainties. A clear periodic signal is also detected from the pulsar at
the center of the Nebula.

Crab Pulsar[edit]

Boomerang SNR[edit]

T CrB[edit]

Geminga Pulsar[edit]

SGR 1935+2154[edit]

SN 2023ixf[edit]

  • PI: Alicia López-Oramas; Team: Arnau Aguasca-Cabot, Alessandro Carosi, Giorgio Pirola
  • Abstract: Core-collapse SN that exploded in May 2023
  • Link: Project Webpage

SN 2024bch[edit]

  • PI: Alicia López-Oramas; Team: Arnau Aguasca-Cabot, Alessandro Carosi, Andrea Simognini
  • Abstract: CCSNe triggered via Galactic ToO. LST-1 only project
  • Link: Project Webpage

Cygnus X North region[edit]

  • PI: Team:
  • Abstract:
  • Link:

Publications[edit]

Papers Status

Proceedings

Observed Galactic Sources[edit]

Full up-to-date list of all observed sources: Sources observed with LST-1

Sources with total integration time > 5 hours (updated: 17 Jun 2024):

Crab: 380.0 hours, LHAASO J2108+5157: 92.6 hours, Geminga: 77.6 hours, G106.3+2.7: 72.5 hours, GalacticCenter: 56.6 hours, SN_2023ixf: 46.2 hours, Cygnus_XNorth: 35.6 hours, PSR J2021+3651: 35.3 hours, LHAASO J1956+2845: 32.7 hours, SGR 1935+2154: 31.8 hours, LHAASO J0341+5258: 28.7 hours, SDSS J1430+2303: 28.2 hours, LS I +61 303: 26.2 hours, V4641: 17.6 hours, SN2024bch: 16.0 hours, Nova_RS_Oph: 15.0 hours, PSR J2032+4127: 14.3 hours, OffCrab: 11.6 hours, U Sco: 10.9 hours, 1LHAASO_J1906+0712: 7.4 hours, G17.8+16.7: 7.2 hours, PSR J1402+13: 5.7 hours, WR140: 5.7 hours, GalCenter_field1: 5.6 hours, GalCenter_field2: 5.1 hours,

LST Galactic Proposals[edit]

LST-1 Galactic Proposals Cycle I (2023)

LST-1 Galactic Proposals Cycle II (2024)

Cycle II Proposals - accumulated hours (September 2024)[edit]

Cycle2 gal september2024.png

Conferences[edit]

Please refer to the LSTCOS webpage for a list of upcoming conferences attended by LST members.

Relevant LST-GAL arXiv's (per month)[edit]

May 2023: File:May2023.pdf

June-July 2023: File:June-July2023.pdf

July - September 2023: File:July-September2023.pdf

September - October 2023: File:September-October2023.pdf

February - March 2024: File:Papers feb march2024.pdf

March - April 2024: File:Papers march april.pdf

May - June 2024: File:Papers may june2024.pdf

June - July 2024: File:Papers june july2024.pdf

August - September 2024: File:Papers aug sep2024.pdf

Useful Tools[edit]

Retrieved from "https://www.lst1.iac.es/wiki/index.php?title=Galactic_Working_Group&oldid=11617"