Results 81 to 90 of about 3,030,245 (218)

Early and Extensive Ultraviolet through Near Infrared Observations of the Intermediate-luminosity Type Iax Supernovae 2024pxl

The Astrophysical Journal
We present ultraviolet (UV) through near-infrared (NIR) photometric and spectroscopic observations of the nearby SN 2024pxl, the third Type Ia supernova (SN Ia) in NGC 6384.
W. B. Hoogendam, C. Ashall, D. O. Jones, B. J. Shappee, M. A. Tucker, M. E. Huber, K. Auchettl, D. D. Desai, A. Do, J. T. Hinkle, M. Y. Kong, S. Romagnoli, J. Shi, A. Syncatto, C. D. Kilpatrick   +14 more
doaj   +1 more source

Project 1640 Observations of Brown Dwarf GJ 758 B: Near-infrared Spectrum and Atmospheric Modeling [PDF]

, 2017
The nearby Sun-like star GJ 758 hosts a cold substellar companion, GJ 758 B, at a projected separation of ≲30 au, previously detected in high-contrast multi-band photometric observations.
R. Nilsson, A. Veicht, P. A. Godfrey, E. Rice, J. Aguilar, L. Pueyo, L. Roberts, R. Oppenheimer, D. Brenner, S. Luszcz-Cook, E. Bacchus, C. Beichman, R. Burruss, E. Cady, R. Dekany, R. Fergus, L. Hillenbrand, S. Hinkley, D. King, T. Lockhart, I. Parry, A. Sivaramakrishnan, R. Soummer, G. Vasisht, C. Zhai, N. Department, A. History, N. York, Ný, Usa, D. O. Astronomy, Stockholm University, Stockholm, Sweden, California institute of Technology, Pasadena, Ca, City University of New York, Department of Engineering SciencePhysics, College of Staten Island, Staten Island, D. Physics, Astronomy, The Johns Hopkins University, Baltimore, Md., Space Telescope Science Institute, Jet Propulsion Laboratory, I. O. Astronomy, Cambridge University, Cambridge, Uk, Caltech Optical Observatories, Nasa Lunar Science Institute, Department of Materials Science, Courant Institute of Mathematical Sciences, N. University, S. O. Physics, U. Exeter, Exeter   +59 more
semanticscholar   +1 more source

On-line monitoring of the transesterification reaction between triglycerides and ethanol using near infrared spectroscopy combined with gas chromatography [PDF]

, 2011
Many analytical procedures have been developed to determine the composition of reaction mixtures during transesterification of vegetable oils with alcohols.
Ying Li, Sophie Thiebaud-Roux, Prat, Laurent E., Richard, Romain, Dubreuil, Brigitte, Romain Richard, Thiebaud-Roux, Sophie, Laurent Prat, Liu, Ying, Li, Ying, Brigitte Dubreuil, Prat, Laurent, Thiebaud Roux, Sophie   +12 more
core   +1 more source

NIRC2 Interferometric Imaging of the HD 34282 Transition Disk’s Small Grain Structure

The Astrophysical Journal
The HD 34282 transition disk is a favorable location for protoplanet searches given its complex substructures that may be driven by planet formation.
Christina L. Vides, Steph Sallum, Josh Eisner, Andy Skemer, Ruth Murray-Clay   +4 more
doaj   +1 more source

Studies of Near Infrared Spectroscopy for P!'edicting Forage Quality of Tropical Grasses [PDF]

, 1992
Introduction Near Infrared Reflectance Spectroscopy (NIRS) for forage has been widely and successfully used throughout the world, but the study for tropical grasses is still limited, especially in Asia including Japan and Indonesia.
Kameoka, Kenichi, Purnomoadi, Agung, Amari, Masahiro   +2 more
core   +1 more source

Retrieval of Carbon Monoxide Vertical Column Densities from SCIAMACHY Infrared Nadir Observations [PDF]

, 2008
Nadir observations in the shortwave infrared channels of SCIAMACHY onboard the ENVISAT satellite can be used to derive information on CO, CH4, N2O, CO2, and H2O.
Doicu, Adrian, Franz Schreier, Gimeno-Garcia, Sebastian, Hess, Michael, A. Doicu, Schreier, Franz, Lichtenberg, Günter, G. Lichtenberg, Sebastián Gimeno‐García, M. Hess   +9 more
core   +1 more source

Reduction and Archiving of Multiwavelength, Polarized-intensity Debris-disk Observations with the Gemini Planet Imager

The Astrophysical Journal Supplement Series
The Gemini Planet Imager (GPI), an extreme adaptive optics instrument on Gemini South, has been pivotal in the advancement of the debris-disk field.
Katie A. Crotts, Thomas M. Esposito, Brenda C. Matthews, Gaspard Duchêne, Christine H. Chen, Justin Hom, Paul Kalas, Briley L. Lewis, Stanimir Metchev, Maxwell Millar-Blanchaer, Deborah Padgett, Marshall Perrin, Bin Ren   +12 more
doaj   +1 more source

Potential of on-line visible and near infrared spectroscopy for measurement of pH for deriving variable rate lime recommendations [PDF]

, 2013
This paper aims at exploring the potential of visible and near infrared (vis-NIR) spectroscopy for on-line measurement of soil pH, with the intention to produce variable rate lime recommendation maps.
Yücel Tekin, Boyan Kuang, Tekin, Yücel, Mouazen, Abdul Mounem, Kuang, Boyan Y., Abdul Mouazen, Abdul M. Mouazen, Mouazen, Abdul M., Kuang, Boyan   +8 more
core   +1 more source

The Search for Stable Nickel: Investigating the Origins of Type Ia Supernovae with Late-time Near-infrared Spectroscopy from the Carnegie Supernova Project-II

The Astrophysical Journal
Producing stable ^58 Ni in Type Ia supernovae (SNe Ia) requires sufficiently high-density conditions that are not predicted for all origin scenarios, so examining the distribution of ^58 Ni using the near-infrared (NIR) [Ni II ] 1.939 μ m line may ...
Sahana Kumar, Eric Y. Hsiao, Chris Ashall, Peter Hoeflich, Eddie Baron, Mark M. Phillips, Maryam Modjaz, Abigail Polin, Nidia Morrell, Christopher R. Burns, Jing Lu, Melissa Shahbandeh, Lindsey A. Kwok, Lluis Galbany, M. D. Stritzinger, Carlos Contreras, James M. DerKacy, T. Hoover, Syed A. Uddin, Saurabh W. Jha, Huangfei Xiao, K. Krisciunas, N. B. Suntzeff   +22 more
doaj   +1 more source

New Astronomical Observatory Design for the Detection and Tracking of Satellite Objects: The Satellite Robotic Observatory (SRO)

Remote Sensing
Robotic Astronomical Observatories (RAOs) have provided very good results in different research projects in astrophysics/astronomy. Their applications in the detection, tracking, and identification of near-Earth objects have contributed to the ...
Francisco Espartero, Javier Cubas, David Nespral, Santiago Pindado   +3 more
doaj   +1 more source