New Henrietta Spectrograph to Probe Alien Atmospheres #Science #Space #Astrobiology #AlienWorlds #Spectroscopy #SpaceTech
www.universetoday.com/articles/new-henrietta-s...
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#Spectroscopy
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Instruct Course on Calorimetric and Spectroscopic Characterization of Biomolecules
📅 7-11 September 2026
📍 @ceitec.eu , Czechia
📝 Registration open| Deadline: 28 June 2026
🔗 instruct-eric.org/events/instr...
#calorimetry #spectroscopy #training
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New in the #VirtualObservatory: “The metal-poor tail of the APOGEE survey. II.” by Montelius M. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A3...
#MilkyWayGalaxy #MagellanicClouds #InfraredAstronomy #Spectroscopy
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Ready to elevate your brand in the spectroscopy community? Discover sponsorship and advertising opportunities that connect you with a global, engaged audience through the SAS Avertising Prospectus.
👉 Explore the prospectus: bit.ly/4q5vT9u
#SAS #Spectroscopy #Sponsorship #Advertising #Marketing
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New in the #VirtualObservatory: “Nova Vul 2024 (V615 Vul) spectra” by Valisa P. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A3...
#Spectroscopy #Novae #VisibleAstronomy
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Engineering Division #Machinist Mike Gronley inspects the thickness of a prototype fiber-positioning robot, which he fabricated in the Lab’s machine shop. The piece required tight tolerances and thin features. It is for Spec-S5, a next-gen instrument that will map the universe using #Spectroscopy.
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IR Spectroscopy Market Report Size, Share and Trends 2035 www.marketresearchfuture.com/reports/ir-s...
#Spectroscopy #AI #EdgeAI #Sensors #Innovation #FutureTech #TechTrends #NextGen #ScienceTech
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Learn more: bit.ly/3LRexPF
#SAS #Spectroscopy #MemberBenefits #ProfessionalDevelopment #AppliedSpectroscopy
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Research led by Rosalba Gaudiuso (University of Bari, Italy) explores how LIBS spectroscopy could detect trace metal patterns in blood linked to autism - potentially enabling earlier diagnosis.
🔗 https://ow.ly/NBqJ50Yqcku
#AutismResearch #Spectroscopy #AnalyticalChemistry
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Squirrel untangles the kinematic dance of multiple galaxies in gravitational lens systems, extracting stellar motions from spectra where cosmic magnification reveals distant universe secrets.
https://github.com/ajshajib/squirrel
#GravitationalLensing #Spectroscopy #Kinematics
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New in the #VirtualObservatory: “Taxonomic classification of asteroids” by Pentikainen H. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A1...
#Asteroids #Spectroscopy #GalaxyClassificationSystems #SolarSystem
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Unlock stellar secrets with SMART - an MCMC spectroscopy toolkit that transforms raw light from distant stars into precise physical parameters using cutting-edge Bayesian analysis.
https://github.com/chihchunhsu/smart
#Spectroscopy #MCMC #StellarPhysics
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Domain-Level Classification of Archaea and Bacteria Using AI-Assisted Single-Cell Raman Spectroscopy
#microbiology #archaea #bacteria #spectroscopy #MicroSky
pubs.acs.org/doi/10.1021/...
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New in the #VirtualObservatory: “TIMER catalogue of HII regions” by Sanchez-Menguiano L. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/545/...
#Spectroscopy #HIiRegions #VisibleAstronomy #LineIntensities
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Our B18 beamline recently celebrated its 1,000th publication in Diamond's database!🎉
Combining X-ray absorption #spectroscopy with electrochemical measurements, the team uncovered how hydration enhances the activity of iridium oxide catalysts used in #PEMWE.
Read more 👉 https://bit.ly/3Nr9VAx
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👉 Learn more: scixconference.org/
#SAS #Spectroscopy #SciX #AnalyticalScience #STEMCommunity
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Abstract: Butterfly wings exhibit optical phenomena resulting from pigments as well as from intricate nanostructures of the scales that plays an important role in their ecology mainly, communication, thermoregulation as well as mating. In our study, we examined the optical behavior of butterfly wing scales by analyzing their percent reflectance, absorbance, percent transmittance, and effective refractive index using ultraviolet–visible near-infrared (UV–Vis-NIR) spectroscopy which is a valuable analytical technique that provide details of the optical properties of materials. In the study conducted with 10 butterflies, the UV, visible, and NIR regions are highlighted to determine the optical properties of butterflies. From the study, it is explored that the UV region exhibit major absorbance, the visible region exhibits major reflectance, and infrared regions exhibit minor reflectance. Optical parameters other than reflectance and absorbance are derived from the spectroscopic data and plotted using Origin software. The percent reflectance, absorbance, percent transmittance, effective refractive index, and their respective wavelength of butterflies studied vary across species. Ariadne merione is observed to have the highest percent reflectance and the lowest is observed in the Eurema hecabe. The overall percentage of reflectance observed in the study ranges between 46%–68%. The absorbance is observed highest for Parantica aglea and lowest for Ypthima huebneri with optimum absorbance ranging between 1.23–0.82. The highest transmittance percentage is observed for Tirumala septentrionis, and the lowest value is observed in Mycalesis mineus and E. hecabe with optimum transmittance ranging between 63% to 47%, respectively. The refractive index was analyzed using the Fresnel equation, followed by an empirical Cauchy dispersion fit to characterize its wavelength dependence. The results revealed unusually high refractive index values for a biological specimen, indicating an effective refractive index behavior influenced by structural, pigmentation and optical complexity rather than representing the intrinsic material refractive index. This study is the first record on comprehensively determining the optical properties of Indian butterflies especially effective refractive index using UV–Vis-NIR spectroscopy.
New from Applied Spectroscopy!
Analysis of the Optical Properties of Butterflies Using Ultraviolet–Visible Near-Infrared Spectroscopy
Read more: https://doi.org/10.1177/00037028251397426
#SAS #Spectroscopy #UVVis #NIR #Butterfly #wing #refractive #index
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New in the #VirtualObservatory: “TOI-5789.01 planet candidate HARPS-N RVs” by Bonomo A.S. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A1...
#VisibleAstronomy #RadialVelocity #Spectroscopy #Exoplanets
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Abstract: Understanding the abundance of atomic oxygen in the vicinity of carbon surfaces exposed to high-enthalpy flows is critical to accurate predictions of the gas–surface interaction. A novel approach for obtaining absolute number density measurements of atomic oxygen in high-enthalpy facilities with nanosecond laser pulses is described and demonstrated using photoionization-dominated, two-photon laser-induced fluorescence. In two-photon laser-induced fluorescence measurements, the depopulation of the excited state is typically dominated by electronic quenching, which depends on the temperature, pressure, and gas composition. To account for the electronic quenching rate, the fluorescence lifetime can be measured by temporally resolving the fluorescence. This can prove challenging in high-temperature and/or high-pressure environments where the fluorescence lifetime can be less than a nanosecond. Instead, by increasing the laser intensity until photoionization dominates the depopulation of the excited state, we create a quenching-independent measurement that is proportional to absolute number density. This technique is demonstrated here in the reacting boundary layer of a graphite sample ablating in the 6000 K plume of an inductively coupled plasma torch. The boundary layer possesses a large temperature gradient that varies from about 2000 K near the sample surface to the plume temperature of 6000 K in a span of approximately 2 mm. The photoionization-dominated technique is calibrated by using the freestream oxygen concentration, assuming the torch plume is in local thermodynamic equilibrium. The spatial resolution of the measurements is 50 µm and we are able to measure the number density of atomic oxygen to within about 60 µm of the graphite sample.
New from Applied Spectroscopy!
Quenching-Independent Two-Photon Absorption Laser-Induced #Fluorescence Measurements of Atomic Oxygen in High-Enthalpy Air/Carbon Gas–Surface Interaction
Read more: https://doi.org/10.1177/00037028251388670
#SAS #Spectroscopy #TwoPhoton #quenching #AtomicOxygen
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#APSSummit26 Visit Booth 1600 Ask us about high stability, precision micropositioners, microscope stages, and platforms. Designed for #nanoscale applications. #biophysics #microscopy #quantum #spectroscopy @APSPhysics
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👉 Graduate Award: bit.ly/4tlPsgr
👉 Undergraduate Award: bit.ly/4axF4ee
#SAS #Spectroscopy #StudentAwards
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Not all spectroscopy methods see molecules the same way! Discover when to use Infrared, Raman, or UV-Vis for maximum insight in analytical chemistry. Curious about molecular fingerprints or non-destructive tests? 👉 www.azooptics.com/Article.aspx... #Spectroscopy #AnalyticalChemistry
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A new substrate made in part with covalent organic framework–based nanofilms has allowed researchers to take mass-spectrometry images of an entire plant. #physics #spectroscopy
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Learn more: bit.ly/3LRexPF
#SAS #Spectroscopy #MemberBenefits #Networking #ProfessionalGrowth
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![Abstract: Multivariate regression models were optimized for the quantification of sulfuric acid (H2SO4) [0–8 M] and temperature (20 °C–80 °C) in the presence of ammonium sulfate ((NH4)2SO4 [0–0.6 M]) using Raman spectroscopy. Optical vibrational spectroscopy is a useful nondestructive technique for the in situ analysis of complex chemical systems notoriously difficult to monitor in situ and in real-time. Multivariate analysis, a chemometrics method, can be paired with these nondestructive optical methods for determining analyte concentration and speciation in complex solutions, such as dissociated species in polyprotic acids, e.g., H2SO4. The effect of temperature is often overlooked although it can have a major influence on speciation and the corresponding Raman spectra. Here, partial least squares regression models were optimized for the quantification of H2SO4 and its two deprotonated forms as a function of temperature. Measuring bisulfate as a function of temperature is particularly challenging owing to changes in the second dissociation constant. A designed training set effectively minimized the sample set size and trained a robust predictive model with percent root mean square error of <3% for H2SO4. The practical strategy employed here was demonstrated to be effective for building chemometric models that directly account for dynamic temperatures with static samples and is shown to be amenable to flow cell analysis applications with a simple calibration transfer for process monitoring applications.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:qfq22bfwn3i2ksudox2otf2y/bafkreibhkscdpz4m3zwit6nlqqcqfj4istvptojqpbi5wbown63bffvvdq)
Abstract: Multivariate regression models were optimized for the quantification of sulfuric acid (H2SO4) [0–8 M] and temperature (20 °C–80 °C) in the presence of ammonium sulfate ((NH4)2SO4 [0–0.6 M]) using Raman spectroscopy. Optical vibrational spectroscopy is a useful nondestructive technique for the in situ analysis of complex chemical systems notoriously difficult to monitor in situ and in real-time. Multivariate analysis, a chemometrics method, can be paired with these nondestructive optical methods for determining analyte concentration and speciation in complex solutions, such as dissociated species in polyprotic acids, e.g., H2SO4. The effect of temperature is often overlooked although it can have a major influence on speciation and the corresponding Raman spectra. Here, partial least squares regression models were optimized for the quantification of H2SO4 and its two deprotonated forms as a function of temperature. Measuring bisulfate as a function of temperature is particularly challenging owing to changes in the second dissociation constant. A designed training set effectively minimized the sample set size and trained a robust predictive model with percent root mean square error of <3% for H2SO4. The practical strategy employed here was demonstrated to be effective for building chemometric models that directly account for dynamic temperatures with static samples and is shown to be amenable to flow cell analysis applications with a simple calibration transfer for process monitoring applications.
New from Applied Spectroscopy!
Monitoring Sulfuric Acid and Temperature Using Raman Spectroscopy and Multivariate Chemometrics
Read more: https://doi.org/10.1177/00037028251394347
#SAS #Spectroscopy #Raman #Multivariate #Chemometrics #flow
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New in the #VirtualObservatory: “TOI-3288 A b and TOI-4666 b light and RV curves” by Frensch Y.G.C. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A73
#RadialVelocity #VisibleAstronomy #Photometry #Spectroscopy
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New in the #VirtualObservatory: “Colours from low-z LS DR9 galaxies” by Liao L.-W. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/518/...
#Spectroscopy #Galaxies #Photometry #StarFormingRegions
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New in the #VirtualObservatory: “H I gas properties in paired galaxies with WALLABY” by Kim S.-J. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/519/...
#GalaxyKinematics #RadialVelocity #Astrometry #Spectroscopy
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Jupiter’s Atmosphere Holds Steady Astronomers knew that Jupiter's upper atmosphere could be strangely warm, but only now do they have global maps showing just where those hot spots are and ho...
#Features #Highlights #atmospheres #Jupiter #spectroscopy
Origin | Interest | Match
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Jupiter’s Atmosphere Holds Steady Astronomers knew that Jupiter's upper atmosphere could be strangely warm, but only now do they have global maps showing just where those hot spots are and ho...
#Features #Highlights #atmospheres #Jupiter #spectroscopy
Origin | Interest | Match
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