The Green Edge cruise: investigating the marginal ice zone processes during late spring and early summer to understand the fate of the Arctic phytoplankton bloom

Autor: F. Bruyant, R. Amiraux, M.-P. Amyot, P. Archambault, L. Artigue, L. Barbedo de Freitas, G. Bécu, S. Bélanger, P. Bourgain, A. Bricaud, E. Brouard, C. Brunet, T. Burgers, D. Caleb, K. Chalut, H. Claustre, V. Cornet-Barthaux, P. Coupel, M. Cusa, F. Cusset, L. Dadaglio, M. Davelaar, G. Deslongchamps, C. Dimier, J. Dinasquet, D. Dumont, B. Else, I. Eulaers, J. Ferland, G. Filteau, M.-H. Forget, J. Fort, L. Fortier, M. Galí, M. Gallinari, S.-E. Garbus, N. Garcia, C. Gérikas Ribeiro, C. Gombault, P. Gourvil, C. Goyens, C. Grant, P.-L. Grondin, P. Guillot, S. Hillion, R. Hussherr, F. Joux, H. Joy-Warren, G. Joyal, D. Kieber, A. Lafond, J. Lagunas, P. Lajeunesse, C. Lalande, J. Larivière, F. Le Gall, K. Leblanc, M. Leblanc, J. Legras, K. Lévesque, K.-M. Lewis, E. Leymarie, A. Leynaert, T. Linkowski, M. Lizotte, A. Lopes dos Santos, C. Marec, D. Marie, G. Massé, P. Massicotte, A. Matsuoka, L. A. Miller, S. Mirshak, N. Morata, B. Moriceau, P.-I. Morin, S. Morisset, A. Mosbech, A. Mucci, G. Nadaï, C. Nozais, I. Obernosterer, T. Paire, C. Panagiotopoulos, M. Parenteau, N. Pelletier, M. Picheral, B. Quéguiner, P. Raimbault, J. Ras, E. Rehm, L. Ribot Lacosta, J.-F. Rontani, B. Saint-Béat, J. Sansoulet, N. Sardet, C. Schmechtig, A. Sciandra, R. Sempéré, C. Sévigny, J. Toullec, M. Tragin, J.-É. Tremblay, A.-P. Trottier, D. Vaulot, A. Vladoiu, L. Xue, G. Yunda-Guarin, M. Babin

Publikováno v: Earth System Science Data, Vol 14, Pp 4607-4642 (2022)

The Green Edge project was designed to investigate the onset, life, and fate of a phytoplankton spring bloom (PSB) in the Arctic Ocean. The lengthening of the ice-free period and the warming of seawater, amongst other factors, have induced major chan

Externí odkaz: https://doaj.org/article/a4c3fafbe88743e18c0a2e61893ef290

AGN STORM 2. IX. Studying the Dynamics of the Ionized Obscurer in Mrk 817 with High-resolution X-Ray Spectroscopy

Autor: Fatima Zaidouni, Erin Kara, Peter Kosec, Missagh Mehdipour, Daniele Rogantini, Gerard A. Kriss, Ehud Behar, Jelle Kaastra, Aaron J. Barth, Edward M. Cackett, Gisella De Rosa, Yasaman Homayouni, Keith Horne, Hermine Landt, Nahum Arav, Misty C. Bentz, Michael S. Brotherton, Elena Dalla Bontà, Maryam Dehghanian, Gary J. Ferland, Carina Fian, Jonathan Gelbord, Michael R. Goad, Diego H. González Buitrago, Catherine J. Grier, Patrick B. Hall, Chen Hu, Dragana Ilić, Shai Kaspi, Christopher S. Kochanek, Andjelka B. Kovačević, Daniel Kynoch, Collin Lewin, John Montano, Hagai Netzer, Jack M. M. Neustadt, Christos Panagiotou, Ethan R. Partington, Rachel Plesha, Luka Č. Popović, Daniel Proga, Thaisa Storchi-Bergmann, David Sanmartim, Matthew R. Siebert, Matilde Signorini, Marianne Vestergaard, Tim Waters, Ying Zu

Publikováno v: The Astrophysical Journal, Vol 974, Iss 1, p 91 (2024)

We present the results of the XMM-Newton and NuSTAR observations taken as part of the ongoing, intensive multiwavelength monitoring program of the Seyfert 1 galaxy Mrk 817 by the AGN Space Telescope and Optical Reverberation Mapping 2 (AGN STORM 2) P

Externí odkaz: https://doaj.org/article/72a0395dcbd8439787caa0ce7414fef7

AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817

Autor: Y. Homayouni, Gerard A. Kriss, Gisella De Rosa, Rachel Plesha, Edward M. Cackett, Michael R. Goad, Kirk T. Korista, Keith Horne, Travis Fischer, Tim Waters, Aaron J. Barth, Erin A. Kara, Hermine Landt, Nahum Arav, Benjamin D. Boizelle, Misty C. Bentz, Michael S. Brotherton, Doron Chelouche, Elena Dalla Bontà, Maryam Dehghanian, Pu Du, Gary J. Ferland, Carina Fian, Jonathan Gelbord, Catherine J. Grier, Patrick B. Hall, Chen Hu, Dragana Ilić, Michael D. Joner, Jelle Kaastra, Shai Kaspi, Andjelka B. Kovačević, Daniel Kynoch, Yan-Rong Li, Missagh Mehdipour, Jake A. Miller, Jake Mitchell, John Montano, Hagai Netzer, J. M. M. Neustadt, Ethan Partington, Luka Č. Popović, Daniel Proga, Thaisa Storchi-Bergmann, David Sanmartim, Matthew R. Siebert, Tommaso Treu, Marianne Vestergaard, Jian-Min Wang, Martin J. Ward, Fatima Zaidouni, Ying Zu

Publikováno v: The Astrophysical Journal, Vol 963, Iss 2, p 123 (2024)

An intensive reverberation mapping campaign of the Seyfert 1 galaxy Mrk 817 using the Cosmic Origins Spectrograph on the Hubble Space Telescope revealed significant variations in the response of broad UV emission lines to fluctuations in the continuu

Externí odkaz: https://doaj.org/article/316614fb5a9e43ee843eceed4152da03

Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom

Autor: P. Massicotte, R. Amiraux, M.-P. Amyot, P. Archambault, M. Ardyna, L. Arnaud, L. Artigue, C. Aubry, P. Ayotte, G. Bécu, S. Bélanger, R. Benner, H. C. Bittig, A. Bricaud, É. Brossier, F. Bruyant, L. Chauvaud, D. Christiansen-Stowe, H. Claustre, V. Cornet-Barthaux, P. Coupel, C. Cox, A. Delaforge, T. Dezutter, C. Dimier, F. Domine, F. Dufour, C. Dufresne, D. Dumont, J. Ehn, B. Else, J. Ferland, M.-H. Forget, L. Fortier, M. Galí, V. Galindo, M. Gallinari, N. Garcia, C. Gérikas Ribeiro, M. Gourdal, P. Gourvil, C. Goyens, P.-L. Grondin, P. Guillot, C. Guilmette, M.-N. Houssais, F. Joux, L. Lacour, T. Lacour, A. Lafond, J. Lagunas, C. Lalande, J. Laliberté, S. Lambert-Girard, J. Larivière, J. Lavaud, A. LeBaron, K. Leblanc, F. Le Gall, J. Legras, M. Lemire, M. Levasseur, E. Leymarie, A. Leynaert, A. Lopes dos Santos, A. Lourenço, D. Mah, C. Marec, D. Marie, N. Martin, C. Marty, S. Marty, G. Massé, A. Matsuoka, L. Matthes, B. Moriceau, P.-E. Muller, C.-J. Mundy, G. Neukermans, L. Oziel, C. Panagiotopoulos, J.-J. Pangrazi, G. Picard, M. Picheral, F. Pinczon du Sel, N. Pogorzelec, I. Probert, B. Quéguiner, P. Raimbault, J. Ras, E. Rehm, E. Reimer, J.-F. Rontani, S. Rysgaard, B. Saint-Béat, M. Sampei, J. Sansoulet, C. Schmechtig, S. Schmidt, R. Sempéré, C. Sévigny, Y. Shen, M. Tragin, J.-É. Tremblay, D. Vaulot, G. Verin, F. Vivier, A. Vladoiu, J. Whitehead, M. Babin

Publikováno v: Earth System Science Data, Vol 12, Pp 151-176 (2020)

The Green Edge initiative was developed to investigate the processes controlling the primary productivity and fate of organic matter produced during the Arctic phytoplankton spring bloom (PSB) and to determine its role in the ecosystem. Two field cam

Externí odkaz: https://doaj.org/article/f732608a84aa4bae8593d90fdeaf0178

AGN STORM 2. II. Ultraviolet Observations of Mrk 817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope

Autor: Y. Homayouni, Gisella De Rosa, Rachel Plesha, Gerard A. Kriss, Aaron J. Barth, Edward M. Cackett, Keith Horne, Erin A. Kara, Hermine Landt, Nahum Arav, Benjamin D. Boizelle, Misty C. Bentz, Thomas G. Brink, Michael S. Brotherton, Doron Chelouche, Elena Dalla Bontà, Maryam Dehghanian, Pu Du, Gary J. Ferland, Laura Ferrarese, Carina Fian, Alexei V. Filippenko, Travis Fischer, Ryan J. Foley, Jonathan Gelbord, Michael R. Goad, Diego H. González Buitrago, Varoujan Gorjian, Catherine J. Grier, Patrick B. Hall, Juan V. Hernández Santisteban, Chen Hu, Dragana Ilić, Michael D. Joner, Jelle Kaastra, Shai Kaspi, Christopher S. Kochanek, Kirk T. Korista, Andjelka B. Kovačević, Daniel Kynoch, Yan-Rong Li, Ian M. McHardy, Jacob N. McLane, Missagh Mehdipour, Jake A. Miller, Jake Mitchell, John Montano, Hagai Netzer, Christos Panagiotou, Ethan Partington, Richard W. Pogge, Luka Č. Popović, Daniel Proga, Daniele Rogantini, Thaisa Storchi-Bergmann, David Sanmartim, Matthew R. Siebert, Tommaso Treu, Marianne Vestergaard, Jian-Min Wang, Martin J. Ward, Tim Waters, Peter R. Williams, Fatima Zaidouni, Ying Zu

Publikováno v: The Astrophysical Journal, Vol 948, Iss 2, p 85 (2023)

We present reverberation mapping measurements for the prominent ultraviolet broad emission lines of the active galactic nucleus Mrk 817 using 165 spectra obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope. Our ultraviolet obs

Externí odkaz: https://doaj.org/article/8cc843479a1343fd9904787d8f7af75a