Results 91 to 100 of about 7,202 (193)

The TESS–Keck Survey. XIX. A Warm Transiting Sub-Saturn-mass Planet and a Nontransiting Saturn-mass Planet Orbiting a Solar Analog

The Astronomical Journal
The Transiting Exoplanet Survey Satellite (TESS) continues to increase dramatically the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable to radial velocity (RV) and atmospheric follow-up observations. TOI-1386 is
Michelle L. Hill, Stephen R. Kane, Paul A. Dalba, Mason MacDougall, Tara Fetherolf, Zhexing Li, Daria Pidhorodetska, Natalie M. Batalha, Ian J. M. Crossfield, Courtney Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Howard Isaacson, Erik A. Petigura, Paul Robertson, Lauren M. Weiss, Aida Behmard, Corey Beard, Ashley Chontos, Fei Dai, Steven Giacalone, Lea A. Hirsch, Rae Holcomb, Jack Lubin, Andrew W. Mayo, Teo Močnik, Joseph M. Akana Murphy, Alex S. Polanski, Lee J. Rosenthal, Ryan A. Rubenzahl, Nicholas Scarsdale, Emma V. Turtelboom, Judah Van Zandt, Allyson Bieryla, David R. Ciardi, Jason D. Eastman, Ben Falk, Katharine M. Hesse, David W. Latham, John Livingston, Rachel A. Matson, Elisabeth Matthews, George R. Ricker, Alexander Rudat, Joshua E. Schlieder, S. Seager, Joshua N. Winn   +47 more
doaj   +1 more source

Seeking Spectroscopic Binaries with Data-driven Models

The Astrophysical Journal
Data-driven stellar classification has a long and important history in astronomy, dating as far back as Annie Jump Cannon’s “by-eye” classifications of stars into spectral types, still used today.
Isabel Angelo, Erik Petigura, Megan Bedell   +2 more
doaj   +1 more source

A Homogeneous Catalog of Oscillating Solar-type Stars Observed by the Kepler Mission and a New Amplitude Scaling Relation Including Chromospheric Activity

The Astronomical Journal
We present a homogeneous catalog of global asteroseismic parameters and derived stellar parameters for 765 Kepler main-sequence and subgiant stars. The catalog was produced by reanalyzing all available Kepler DR25 short-cadence data using pySYD , an ...
Maryum Sayeed, Daniel Huber, Ashley Chontos, Yaguang Li   +3 more
doaj   +1 more source

Pre-Launch Spectral Calibration of the Absorbed Aerosol Sensor. [PDF]

Sensors (Basel), 2023
Mao J, Wang Y, Shi E, Wang J.
europepmc   +1 more source

Preliminary results on the characterization and performances of ZBLAN fiber for infrared spectrographs

, 2014
Present telescopes and future extremely large telescopes make use of fiber-fed spectrographs to observe at optical and infrared wavelengths. The use of fibers largely simplifies the interfacing of the spectrograph to the telescope.
Iuzzolino, M., Oliva, E., Sanna, N., Tozzi, A., Zangrilli, L.   +4 more
core   +1 more source

Development of a spatial heterodyne Raman spectrometer with echelle-mirror structure

Optics Express, 2018
Spatial heterodyne Raman spectroscopy is a spectroscopic detection technique that is particularly suitable for Raman measurements. The spectral range of traditional spatial heterodyne Raman spectrometer (SHRS) is limited by its spectral resolution and the number of detector elements.
Jun Qiu, Xiangdong Qi, Xiaotian Li, Zhenyu Ma, null Jirigalantu, Yuguo Tang, Xiaotao Mi, Xiaoming Zheng, Rui Zhang, null Bayanheshig   +9 more
openaire   +2 more sources

Preparing LIBS for in-situ measurements in JET tokamak: system overview and co-deposited layer thicknesses

Nuclear Materials and Energy
Laser-induced breakdown spectroscopy (LIBS) is a method for elemental composition analysis that has been proposed for fusion reactor safety diagnostics.
Jasper Ristkok, Salvatore Almaviva, Jari Likonen, Juuso Karhunen, Indrek Jõgi, Peeter Paris, Shweta Soni, Pavel Veis, Sahithya Atikukke, Jelena Butikova, Rongxing Yi, Ionut Jepu, Pawel Gasior, Corneliu Porosnicu, Mihaela Bojan, Bianca Solomonea, Sebastijan Brezinsek   +16 more
doaj   +1 more source

A Perfect Tidal Storm: HD 104067 Planetary Architecture Creating an Incandescent World

The Astronomical Journal
The discovery of planetary systems beyond the solar system has revealed a diversity of architectures, most of which differ significantly from our system.
Stephen R. Kane, Tara Fetherolf, Zhexing Li, Alex S. Polanski, Andrew W. Howard, Howard Isaacson, Teo Močnik, Sadie G. Welter   +7 more
doaj   +1 more source

The California Legacy Survey. V. Chromospheric Activity Cycles in Main-sequence Stars

The Astrophysical Journal Supplement Series
We present optical spectroscopy of 710 solar neighborhood stars collected over 20 years to catalog chromospheric activity and search for stellar activity cycles.
Howard Isaacson, Andrew W. Howard, Benjamin Fulton, Erik A. Petigura, Lauren M. Weiss, Stephen R. Kane, Brad Carter, Corey Beard, Steven Giacalone, Judah Van Zandt, Joseph M. Akana Murphy, Fei Dai, Ashley Chontos, Alex S. Polanski, Malena Rice, Jack Lubin, Casey Brinkman, Ryan A. Rubenzahl, Sarah Blunt, Samuel W. Yee, Mason G. MacDougall, Paul A. Dalba, Dakotah Tyler, Aida Behmard, Isabel Angelo, Daria Pidhorodetska, Andrew W. Mayo, Rae Holcomb, Emma V. Turtelboom, Michelle L. Hill, Luke G. Bouma, Jingwen Zhang, Ian J. M. Crossfield, Nicholas Saunders   +33 more
doaj   +1 more source

Mobile Laser-Induced Breakdown Spectroscopy for Future Application in Precision Agriculture-A Case Study. [PDF]

Sensors (Basel), 2023
Erler A, Riebe D, Beitz T, Löhmannsröben HG, Leenen M, Pätzold S, Ostermann M, Wójcik M.   +7 more
europepmc   +1 more source