Status of the VERITAS Stellar Intensity Interferometry (VSII) System

Kieda, D. B.; Jonathan, D; LeBohec, Tugdual; Nolan, Kimberly; Lisa, Mike; Adams, C.; Archer, A; Benbow, W.; Brill, Ari; Buckley, J. H.; Capasso, M.; Christiansen, J. L.; Errando, M.; Falcone, A.; Farrell, K. A.; Feng, Qian; Foote, Gregory; Fortson, L.; Furniss, A.; Gent, A.; Giuri, C.; Gueta, O.; Hanna, D.; Hervet, O.; Holder, J.; Hona, B.; Humensky, T. B.; Jin, Wei; Kaaret, P.; Kertzman, M.; Kleiner, T. K.; Kumar, Santosh; Lang, M. J.; Lundy, M.; Maier, G.; McGrath, C.; Moriarty, P.; Mukherjee, R.; Nieto, D.; Rosillo, M. Nievas; O’Brien, Stephan; Otte, A. N.; Patel, Sahaj; Pfrang, K.; Pohl, M.; Prado, R. R.; Pueschel, E.; Quinn, J.; Ragan, K.; Reynolds, P. T.; Ribeiro, D.; Roache, E.; Ryan, Jim; Sadeh, I.; Santander, M.; Sembroski, G. H.; Shang, Ruo Yu; Tak, D.; Vassiliev, V. V.; Weinstein, A. J.; Williams, D. A.; Williamson, T. J.

doi:10.22323/1.395.0710

Cited by 65 publications

(91 citation statements)

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“…When the literature was reviewed, it was seen that the suicide attempt is associated with a specific disease (Ikeda et al, 2001;Wang et al, 2009). It was shown in this study that the main risk factor for a suicide attempt is the presence of any chronic disease, not the specific type of disease (somatic or psychiatric).…”

Section: Discussionmentioning

confidence: 69%

Youth suicide and hospital-presenting suicide attempts: Examination of risk factors for multiple suicide attempts in adolescence

Tubaş

Esen

Gündüz

et al. 2022

Int J Soc Psychiatry

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Background: The suicide rate among adolescents around the world has increased rapidly. There are many risk factors for attempting suicide, but not all have been clarified yet. Therefore, it is very important to identify risk factors. This study evaluated adolescents with a history of suicide attempts and their association with chronic diseases. Besides, to check whether they attempted suicide multiple times. Other clinical features related to multiple suicide attempts were investigated. Method: This study used a multicentre, retrospective cross-sectional design; 253 adolescents admitted to emergency departments in 2019 for suicide attempts were evaluated. Results: Adolescents with chronic disease were at greater risk for both single and multiple suicide attempts and patients had a 6.14 times higher risk of multiple attempts ( p = .013). The likelihood of multiple attempts did not differ according to the presence of somatic or psychiatric disease. Multiple attempters were more likely to poison themselves with their therapeutic drugs ( p = .002). Conclusion: When adolescents with a chronic disease present to the emergency services after a single suicide attempt using their therapeutic drugs, families should be informed regarding the potential for further attempts.

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Section: Discussionmentioning

confidence: 69%

Youth suicide and hospital-presenting suicide attempts: Examination of risk factors for multiple suicide attempts in adolescence

Tubaş

Esen

Gündüz

et al. 2022

Int J Soc Psychiatry

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“…Several studies have suggested that Maxent has good predictive power for birds (Hu & Liu, 2014, Wauchope et al 2017. We used occurrence records only when the subspecies present was genetically confirmed, and the breeding status was known because this approach to predicting subspecies distribution has proven more accurate than traditional methods that rely solely on occurrence records (Ikeda et al 2017).…”

Section: Species Distribution Modellingmentioning

confidence: 99%

Current breeding distributions and predicted range shifts under climate change in two subspecies of Black‐tailed Godwits in Asia

Zhu

Verhoeven

Velasco

et al. 2022

Global Change Biology

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Current breeding distributions and predicted range shifts under climate change in two subspecies of Black-tailed Godwits in Asia This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as

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“…VSII is implemented through an instrumentation augmentation of the existing VERITAS gamma-ray observatory. 2 VSII operates for 5-10 days/month during bright moon periods when the intensity of scattered moonlight severely limits VERITAS gamma-ray observations. This paper describes the VSII instrumentation, including recent upgrades and improvements in the VSII observatory.…”

Section: The Veritas Stellar Intensity Interferometer (Vsii) 11 Overviewmentioning

confidence: 99%

“…The observing sequence has evolved to include nightly planning of observing constraints imposed by moon location and other considerations (e.g., stellar magnitude, estimated stellar diameter, source elevation, weather, etc.) 2…”

Section: Overviewmentioning

confidence: 99%

Performance of the upgraded VERITAS Stellar Intensity Interferometer (VSII)

Kieda

2022

Optical and Infrared Interferometry and Imaging VIII

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The VERITAS Imaging Air Cherenkov Telescope array (IACT) was augmented in 2019 with high-speed focal plane electronics to create a new Stellar Intensity Interferometry (SII) observational capability (VERITAS-SII, or VSII). VSII operates during bright moon periods, providing high angular resolution observations ( < 1 mas) in the B photometric band using idle telescope time. VSII has already demonstrated the ability to measure the diameters of two B stars at 416 nm (Bet CMa and Eps Ori) with < 5% accuracy using relatively short (5 hours) exposures. 1The VSII instrumentation was recently improved to increase instrumental sensitivity and observational efficiency. This paper describes the upgraded VSII instrumentation and documents the ongoing improvements in VSII sensitivity. The report describes VSII's progress in extending SII measurements to dimmer magnitude stars and improving the VSII angular diameter measurement resolution to better than 1%.

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Status of the VERITAS Stellar Intensity Interferometry (VSII) System

Abstract: Matthews a,d on behalf of the VERITAS Collaboration

Cited by 65 publications

References 0 publications

Youth suicide and hospital-presenting suicide attempts: Examination of risk factors for multiple suicide attempts in adolescence

Youth suicide and hospital-presenting suicide attempts: Examination of risk factors for multiple suicide attempts in adolescence

Current breeding distributions and predicted range shifts under climate change in two subspecies of Black‐tailed Godwits in Asia

Performance of the upgraded VERITAS Stellar Intensity Interferometer (VSII)

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