001     601892
005     20241201104821.0
024 7 _ |a VERITAS:2024quv
|2 INSPIRETeX
024 7 _ |a inspire:2743133
|2 inspire
024 7 _ |a arXiv:2401.01853
|2 arXiv
024 7 _ |a 10.3204/PUBDB-2024-00404
|2 datacite_doi
037 _ _ |a PUBDB-2024-00404
041 _ _ |a English
088 _ _ |a arXiv:2401.01853
|2 arXiv
100 1 _ |a Acharyya, A.
|b 0
245 _ _ |a An Angular Diameter Measurement of $\beta$ UMa via Stellar Intensity Interferometry with the VERITAS Observatory
260 _ _ |c 2023
336 7 _ |a Preprint
|b preprint
|m preprint
|0 PUB:(DE-HGF)25
|s 1706267516_2995828
|2 PUB:(DE-HGF)
336 7 _ |a WORKING_PAPER
|2 ORCID
336 7 _ |a Electronic Article
|0 28
|2 EndNote
336 7 _ |a preprint
|2 DRIVER
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a Output Types/Working Paper
|2 DataCite
520 _ _ |a We use the VERITAS imaging air Cherenkov Telescope (IACT) array to obtain the first measured angular diameter of $\beta$ UMa at visual wavelengths using stellar intensity interferometry (SII) and independently constrain the limb-darkened angular diameter. The age of the Ursa Major moving group has been assessed from the ages of its members, including nuclear member Merak ($\beta$ UMa), an A1-type subgiant, by comparing effective temperature and luminosity constraints to model stellar evolution tracks. Previous interferometric limb-darkened angular-diameter measurements of $\beta$ UMa in the near-infrared (CHARA Array, $1.149 \pm 0.014$ mas) and mid-infrared (Keck Nuller, $1.08 \pm 0.07$ mas), together with the measured parallax and bolometric flux, have constrained the effective temperature. This paper presents current VERITAS-SII observation and analysis procedures to derive squared visibilities from correlation functions. We fit the resulting squared visibilities to find a limb-darkened angular diameter of $1.07 \pm 0.04 {\rm (stat)} \pm 0.05$ (sys) mas, using synthetic visibilities from a stellar atmosphere model that provides a good match to the spectrum of $\beta$ UMa in the optical wave band. The VERITAS-SII limb-darkened angular diameter yields an effective temperature of $9700\pm200\pm 200$ K, consistent with ultraviolet spectrophotometry, and an age of $390\pm 29 \pm 32 $ Myr, using MESA Isochrones and Stellar Tracks (MIST). This age is consistent with $408 \pm 6$ Myr from the CHARA Array angular diameter.
536 _ _ |a 613 - Matter and Radiation from the Universe (POF4-613)
|0 G:(DE-HGF)POF4-613
|c POF4-613
|f POF IV
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588 _ _ |a Dataset connected to INSPIRE
650 _ 7 |a atmosphere: model
|2 INSPIRE
650 _ 7 |a temperature
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650 _ 7 |a interferometer
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650 _ 7 |a tracks
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650 _ 7 |a VERITAS
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650 _ 7 |a observatory
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650 _ 7 |a correlation function
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650 _ 7 |a Cherenkov counter
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650 _ 7 |a air
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650 _ 7 |a gamma ray: VHE
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650 _ 7 |a photomultiplier
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650 _ 7 |a radio wave
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650 _ 7 |a frequency
|2 INSPIRE
650 _ 7 |a flux
|2 INSPIRE
650 _ 7 |a optical
|2 INSPIRE
650 _ 7 |a bolometer
|2 INSPIRE
650 _ 7 |a imaging
|2 INSPIRE
650 _ 7 |a ultraviolet
|2 INSPIRE
650 _ 7 |a nucleus
|2 INSPIRE
693 _ _ |0 EXP:(DE-H253)VERITAS-20170101
|5 EXP:(DE-H253)VERITAS-20170101
|e Very Energetic Radiation Imaging Telescope Array System
|x 0
700 1 _ |a Aufdenberg, J. P.
|b 1
700 1 _ |a Bangale, P.
|b 2
700 1 _ |a Bartkoske, J. T.
|b 3
700 1 _ |a Batista, P.
|0 P:(DE-HGF)0
|b 4
700 1 _ |a Benbow, W.
|b 5
700 1 _ |a Chromey, A. J.
|b 6
700 1 _ |a Davis, J. D.
|b 7
700 1 _ |a Feng, Q.
|b 8
700 1 _ |a Foote, G. M.
|b 9
700 1 _ |a Furniss, A.
|b 10
700 1 _ |a Hanlon, W.
|b 11
700 1 _ |a Hinrichs, C. E.
|b 12
700 1 _ |a Holder, J.
|b 13
700 1 _ |a Jin, W.
|b 14
700 1 _ |a Kaaret, P.
|b 15
700 1 _ |a Kertzman, M.
|b 16
700 1 _ |a Kieda, D.
|b 17
700 1 _ |a Kleiner, T. K.
|0 P:(DE-H253)PIP1093214
|b 18
700 1 _ |a Korzoun, N.
|b 19
700 1 _ |a LeBohec, T.
|b 20
700 1 _ |a Lisa, M. A.
|b 21
700 1 _ |a Lundy, M.
|b 22
700 1 _ |a Matthews, N.
|b 23
700 1 _ |a McGrath, C. E.
|b 24
700 1 _ |a Millard, M. J.
|b 25
700 1 _ |a Moriarty, P.
|b 26
700 1 _ |a Nikkhah, S.
|b 27
700 1 _ |a O'Brien, S.
|b 28
700 1 _ |a Ong, R. A.
|b 29
700 1 _ |a Pohl, M.
|b 30
700 1 _ |a Pueschel, E.
|0 P:(DE-H253)PIP1031007
|b 31
700 1 _ |a Quinn, J.
|b 32
700 1 _ |a Rabinowitz, P. L.
|b 33
700 1 _ |a Ragan, K.
|b 34
700 1 _ |a Roache, E.
|b 35
700 1 _ |a Rose, J. G.
|b 36
700 1 _ |a Sackrider, J. L.
|b 37
700 1 _ |a Sadeh, I.
|0 P:(DE-H253)PIP1006066
|b 38
700 1 _ |a Saha, L.
|b 39
700 1 _ |a Sembroski, G. H.
|b 40
700 1 _ |a Shang, R.
|b 41
700 1 _ |a Tak, D.
|0 P:(DE-H253)PIP1094637
|b 42
700 1 _ |a Ticoras, M.
|0 P:(DE-HGF)0
|b 43
|e Corresponding author
700 1 _ |a Tucci, J. V.
|b 44
700 1 _ |a Wong, S. L.
|b 45
700 1 _ |a VERITAS Collaboration
|0 P:(DE-HGF)0
|b 46
|e Collaboration author
856 4 _ |y OpenAccess
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910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
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910 1 _ |a Deutsches Elektronen-Synchrotron
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910 1 _ |a Deutsches Elektronen-Synchrotron
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910 1 _ |a Deutsches Elektronen-Synchrotron
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|6 P:(DE-H253)PIP1094637
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Matter and the Universe
|1 G:(DE-HGF)POF4-610
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|v Matter and Radiation from the Universe
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914 1 _ |y 2023
915 _ _ |a OpenAccess
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915 _ _ |a Creative Commons Attribution CC BY 4.0
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915 _ _ |a Published
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920 1 _ |0 I:(DE-H253)Z_VER-20210408
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920 1 _ |0 I:(DE-H253)ZEU-CTA-20120731
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980 _ _ |a preprint
980 _ _ |a VDB
980 _ _ |a UNRESTRICTED
980 _ _ |a I:(DE-H253)Z_VER-20210408
980 _ _ |a I:(DE-H253)ZEU-CTA-20120731
980 1 _ |a FullTexts


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