Search Results - "Ceillier, Tugdual"

Weakened magnetic braking as the origin of anomalously rapid rotation in old field stars by van Saders, Jennifer L., Ceillier, Tugdual, Metcalfe, Travis S., Aguirre, Victor Silva, Pinsonneault, Marc H., García, Rafael A., Mathur, Savita, Davies, Guy R.

“…The age of a young to middle-aged star can be determined from how quickly or slowly it rotates, but the relationship breaks down for old stars; models now show…”
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Photometric magnetic-activity metrics tested with the Sun: application to Kepler M dwarfs by Mathur, Savita, Salabert, David, García, Rafael A., Ceillier, Tugdual

“…The Kepler mission has been providing high-quality photometric data leading to many breakthroughs in the exoplanet search and in stellar physics. Stellar…”
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Stellar Rotation in Kepler: Forward Modeling of the Kepler Period Distribution by van Saders, Jennifer L., Pinsonneault, Marc H., García, Rafael A., Ceillier, Tugdual

“…The Kepler mission has made it possible to detect the signatures of surface rotation in tens of thousands of stars across many different spectral types, ages,…”
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Young α-enriched giant stars in the solar neighbourhood by Martig, Marie, Rix, Hans-Walter, Aguirre, Victor Silva, Hekker, Saskia, Mosser, Benoit, Elsworth, Yvonne, Bovy, Jo, Stello, Dennis, Anders, Friedrich, García, Rafael A., Tayar, Jamie, Rodrigues, Thaíse S., Basu, Sarbani, Carrera, Ricardo, Ceillier, Tugdual, Chaplin, William J., Chiappini, Cristina, Frinchaboy, Peter M., García-Hernández, D. A., Hearty, Fred R., Holtzman, Jon, Johnson, Jennifer A., Majewski, Steven R., Mathur, Savita, Mészáros, Szabolcs, Miglio, Andrea, Nidever, David, Pan, Kaike, Pinsonneault, Marc, Schiavon, Ricardo P., Schneider, Donald P., Serenelli, Aldo, Shetrone, Matthew, Zamora, Olga

“…We derive age constraints for 1639 red giants in the APOKASC sample for which seismic parameters from Kepler, as well as effective temperatures, metallicities…”
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RAPID ROTATION OF LOW-MASS RED GIANTS USING APOKASC: A MEASURE OF INTERACTION RATES ON THE POST-MAIN-SEQUENCE by Tayar, Jamie, Ceillier, Tugdual, García-Hernández, D. A., Troup, Nicholas W., Mathur, Savita, García, Rafael A., Zamora, O., Johnson, Jennifer A., Pinsonneault, Marc H., Mészáros, Szabolcs, Prieto, Carlos Allende, Chaplin, William J., Elsworth, Yvonne, Hekker, Saskia, Nidever, David L., Salabert, David, Schneider, Donald P., Serenelli, Aldo, Shetrone, Matthew, Stello, Dennis

“…ABSTRACT We investigate the occurrence rate of rapidly rotating ( >10 km s−1), low-mass giant stars in the Apache Point Observatory Galaxy Evolution…”
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Young [alpha]-enriched giant stars in the solar neighbourhood by Martig, Marie, Rix, Hans-Walter, Aguirre, Victor Silva, Hekker, Saskia, Mosser, Benoit, Elsworth, Yvonne, Bovy, Jo, Stello, Dennis, Anders, Friedrich, García, Rafael A, Tayar, Jamie, Rodrigues, Thaíse S, Basu, Sarbani, Carrera, Ricardo, Ceillier, Tugdual, Chaplin, William J, Chiappini, Cristina, Frinchaboy, Peter M, García-Hernández, D A, Hearty, Fred R, Holtzman, Jon, Johnson, Jennifer A, Majewski, Steven R, Mathur, Savita, Mészáros, Szabolcs, Miglio, Andrea, Nidever, David, Pan, Kaike, Pinsonneault, Marc, Schiavon, Ricardo P, Schneider, Donald P, Serenelli, Aldo, Shetrone, Matthew, Zamora, Olga

“…We derive age constraints for 1639 red giants in the APOKASC sample for which seismic parameters from Kepler, as well as effective temperatures, metallicities…”
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Case-based reasoning for rare events prediction on strategic sites by Vidal, Vincent, Corbineau, Marie-Caroline, Ceillier, Tugdual

“…Conference on Artificial Intelligence for Defense, Nov 2021, Rennes, France Satellite imagery is now widely used in the defense sector for monitoring locations…”
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Concurrent Segmentation and Object Detection CNNs for Aircraft Detection and Identification in Satellite Images by Grosgeorge, Damien, Arbelot, Maxime, Goupilleau, Alex, Ceillier, Tugdual, Allioux, Renaud

“…Detecting and identifying objects in satellite images is a very challenging task: objects of interest are often very small and features can be difficult to…”
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Active learning for object detection in high-resolution satellite images by Goupilleau, Alex, Ceillier, Tugdual, Corbineau, Marie-Caroline

“…Conference on Artificial Intelligence for Defense, Dec 2020, Rennes, France In machine learning, the term active learning regroups techniques that aim at…”
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Ensemble Learning techniques for object detection in high-resolution satellite images by Vilhelm, Arthur, Limbert, Matthieu, Audebert, Clément, Ceillier, Tugdual

“…Ensembling is a method that aims to maximize the detection performance by fusing individual detectors. While rarely mentioned in deep-learning articles applied…”
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Neural Architecture Search in operational context: a remote sensing case-study by Cazasnoves, Anthony, Ganaye, Pierre-Antoine, Sanchis, Kévin, Ceillier, Tugdual

“…Deep learning has become in recent years a cornerstone tool fueling key innovations in the industry, such as autonomous driving. To attain good performances,…”
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Self-Supervised Pretraining on Satellite Imagery: a Case Study on Label-Efficient Vehicle Detection by BOURCIER, Jules, Floquet, Thomas, Dashyan, Gohar, Ceillier, Tugdual, Alahari, Karteek, Chanussot, Jocelyn

“…Conference on Artificial Intelligence for Defense (CAID) 2022, DGA Ma\^itrise de l'Information, Nov 2022, Rennes, France In defense-related remote sensing…”
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Aggregated Primary Detectors For Generic Change Detection In Satellite Images by Vidal, Vincent, Limbert, Matthieu, Ceillier, Tugdual, Moisan, Lionel

“…Detecting changes between two satellite images of the same scene generally requires an accurate (and thus often uneasy to obtain) model discriminating relevant…”
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Improving performance of aircraft detection in satellite imagery while limiting the labelling effort: Hybrid active learning by Imbert, Julie, Dashyan, Gohar, Goupilleau, Alex, Ceillier, Tugdual, Corbineau, Marie-Caroline

“…International Symposium on Geoscience and Remote Sensing (IGARSS), Jul 2021, Brussels, Belgium The earth observation industry provides satellite imagery with…”
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Concurrent Segmentation and Object Detection CNNs for Aircraft Detection and Identification in Satellite Images by Grosgeorge, Damien, Arbelot, Maxime, Goupilleau, Alex, Ceillier, Tugdual, Allioux, Renaud

“…IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2020, Waikoloa, Hawaii, United States Detecting and identifying objects in satellite…”
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Improving Performance of Aircraft Detection in Satellite Imagery While Limiting the Labelling Effort: Hybrid Active Learning by Imbert, Julie, Dashyan, Gohar, Goupilleau, Alex, Ceillier, Tugdual, Corbineau, Marie-Caroline

“…The earth observation industry provides satellite imagery with high spatial resolution and short revisit time. To allow efficient operational employment of…”
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Weakened magnetic braking as the origin of anomalously rapid rotation in old field stars by van Saders, Jennifer L, Ceillier, Tugdual, Metcalfe, Travis S, Aguirre, Victor Silva, Pinsonneault, Marc H, García, Rafael A, Mathur, Savita, Davies, Guy R

“…A knowledge of stellar ages is crucial for our understanding of many astrophysical phenomena, and yet ages can be difficult to determine. As they become older,…”
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Rapid Rotation of Low-Mass Red Giants Using APOKASC: A Measure of Interaction Rates on the Post-main-sequence by Tayar, Jamie, Ceillier, Tugdual, García-Hernández, D. A, Troup, Nicholas W, Mathur, Savita, García, Rafael A, Zamora, O, Johnson, Jennifer A, Pinsonneault, Marc H, Mészáros, Szabolcs, Prieto, Carlos Allende, Chaplin, William J, Elsworth, Yvonne, Nidever, David L, Salabert, David, Schneider, Donald P, Serenelli, Aldo, Shetrone, Matthew, Stello, Dennis

“…We investigate the occurrence rate of rapidly rotating ($v\sin i$$>$10 km s$^{-1}$), low-mass giant stars in the APOGEE-Kepler (APOKASC) fields with…”
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Young alpha-enriched giant stars in the solar neighbourhood by Martig, Marie, Rix, Hans-Walter, Aguirre, Victor Silva, Hekker, Saskia, Mosser, Benoit, Elsworth, Yvonne, Bovy, Jo, Stello, Dennis, Anders, Friedrich, García, Rafael A, Tayar, Jamie, Rodrigues, Thaíse S, Basu, Sarbani, Carrera, Ricardo, Ceillier, Tugdual, Chaplin, William J, Chiappini, Cristina, Frinchaboy, Peter M, García-Hernández, D. A, Hearty, Fred R, Holtzman, Jon, Johnson, Jennifer A, Majewski, Steven R, Mathur, Savita, Mészáros, Szabolcs, Miglio, Andrea, Nidever, David, Pan, Kaike, Pinsonneault, Marc, Schiavon, Ricardo P, Schneider, Donald P, Serenelli, Aldo, Shetrone, Matthew, Zamora, Olga

“…We derive age constraints for 1639 red giants in the APOKASC sample for which seismic parameters from Kepler, as well as effective temperatures, metallicities…”
Get full text