• Weekly Update from the Open Journal of Astrophysics 20/06/2026 It’s Saturday again so it’s time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further four papers, bringing the number in Volume 9 (2026) to 126 and the total so far published by OJAp up to 574.I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.The first paper to report this week, published on Monday 15th June, is “SN 2025adpq: A Type Ia supernova in a collisional ring formed during a major galaxy merger” […]
  • Weekly Update from the Open Journal of Astrophysics 13/06/2026 It’s Saturday again so it’s time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further three papers, bringing the number in Volume 9 (2026) to 122 and the total so far published by OJAp up to 570. I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.The first paper to report this week, published on Thursday 11th June, is “Dancing Streams In Merging Halos: Stellar Streams in a MW–LMC-like merger” by (all based in […]
  • I'm presenting a webinar on"Class modelling and outlier detection in NIR spectroscopy"We have two sessions scheduled🔸 Session 1 (best for the Americas): Jun 16th, 06:00 – 07:00 (UTC+10)🔸 Session 2 (best for EMEA – APAC): Jun 16th, 18:00 – 19:00 (UTC+10)Registration is free, but spots are limited.Details and abstract are on the registration page 👇https://www.trybooking.com/DMSTO#NIR #spectroscopy #NearInfrared #Chemometrics #Python #MachineLearning
  • 🌍☀️ Scientists at #ArizonaState and #Caltech used the #JWST to produce the first weather report for WASP-94A b, a gas giant 700 light-years from #Earth.The #planet has two different #weather sides: a morning edge with #clouds made of vaporized #rock and an almost cloud-free evening edge, driven by temperature differences and powerful winds.👉 https://www.scientificamerican.com/article/jwst-sees-partly-cloudy-skies-on-a-distant-giant-exoplanet/#exoplanet #space #nasa #astronomy #wasp94ab #science #telescope #atmosphere #spectroscopy
  • Invitation to join tomorrow's FREE online BeilsteinTalk “Probing nanostructures atom by atom: An advanced electron microscopy study” with Nasim Alem, The Pennsylvania State University 🇺🇸.📅 May 21, 2026 🕒 3–4 pm CESTRegister for FREE 🔗 https://www.beilstein-institut.de/en/talks/nanotechnology-probing-nanostructures-atom-by-atom-an-advanced-electron-microscopy-study/?M=y#ScanningTunnelingMicroscopy #spectroscopy #TransmissionElectronMicroscopy #TEM #AtomicForceMicroscopy #AFM #BeilsteinTalks
  • The revised analysis does not fully rule out #Europa plumes, but it substantially weakens the original #HST #Lyα evidence. After accounting for Europa’s extended #hydrogen #exosphere and improved background modeling, the previously reported localized excess emission is no longer statistically compelling.📝 https://doi.org/10.1051/0004-6361/202659406🧵2/2#PlanetaryScience #SpacePhysics #Spectroscopy #Jupiter
  • 🌖🔭Roth, Retherford, Saur et al revise their 2014 paper: In a reanalysis of 23 #HST/ #STIS #Lyα observations, the authors revisit & revise their earlier #Europa water plume interpretation.With improved disk positioning & inclusion of a #hydrogen-#exosphere model, the previously reported localized Lyα excess becomes substantially less significant & may be consistent with noise. The data instead robustly support a persistent atomic H exosphere.🧵1/n#PlanetaryScience #SpacePhysics #Spectroscopy
  • Coming up next week: Join the online #BeilsteinTalk "Probing nanostructures atom by atom: An advanced electron microscopy study" with Nasim Alem, The Pennsylvania State University 🇺🇸.📅 May 21, 2026 🕒 3–4 pm CESTRegister for FREE 🔗 https://www.beilstein-institut.de/en/talks/nanotechnology-probing-nanostructures-atom-by-atom-an-advanced-electron-microscopy-study/?M=y#ScanningTunnelingMicroscopy #spectroscopy #TransmissionElectronMicroscopy #TEM #AtomicForceMicroscopy #AFM #BeilsteinTalks
  • Making an astronomer portrait with a juicy rainbow roll 🌈#linocut #printmaking #sciart #spectroscopy #histsci
  • Save the date 📅 May 21, 2026 🕒 3–4 pm CESTOnline #BeilsteinTalk "Probing nanostructures atom by atom: An advanced electron microscopy study" with Nasim Alem, The Pennsylvania State University 🇺🇸.Register for FREE 🔗 https://www.beilstein-institut.de/en/talks/nanotechnology-probing-nanostructures-atom-by-atom-an-advanced-electron-microscopy-study/?M=y#ScanningTunnelingMicroscopy #spectroscopy #TransmissionElectronMicroscopy #TEM #AtomicForceMicroscopy #AFM #BeilsteinTalks
  • 📣 I'm planning to organize an online series of webinars/workshops, focused on #chemometrics and #MachineLearning for #spectroscopy (using #Python )I'd like it to be beginner-friendly and informal. 🆓 Free registration 🏛️ Tutorial and research talks (including guest speakers and workshop sessions)📅 Monthly or fortnightly schedule💻 Fully onlineIf it sound like you may be interested, please read more and register your interest herehttps://nirpyresearch.com/nirpy-webinars/#Webinar
  • If your #spectroscopy dataset is small, deterministic data subdivision into training and test sets may be the way to go 🔬The SPXY algorithm is an extension of the Kennard-Stone method that selects training samples to maximize coverage of both spectra (X) and response variable (Y) at the same time. Here's a primer, with a #Python implementation for #NIR spectroscopy.https://nirpyresearch.com/spxy-algorithm/#Chemometrics #MachineLearning

Related Feeds