Search Results - "Marchesini, E J"

RADIO-WEAK BL LAC OBJECTS IN THE FERMI ERA by Massaro, F., Marchesini, E. J., D'Abrusco, R., Masetti, N., Andruchow, I., Smith, Howard A.

“…ABSTRACT The existence of "radio-weak BL Lac objects" (RWBLs) has been an open question, and has remained unsolved since the discovery that quasars could be…”
Get full text

Optical spectroscopic observations of gamma-ray blazar candidates. IX. Optical archival spectra and further observations from SOAR and OAGH by Peña-Herazo, H. A., Massaro, F., Chavushyan, V., Marchesini, E. J., Paggi, A., Landoni, M., Masetti, N., Ricci, F., D’Abrusco, R., Milisavljevic, D., Jiménez-Bailón, E., La Franca, F., Smith, Howard A., Tosti, G.

“…Nearly one third of the sources in the Fermi -LAT catalogs lacks a lower energy counterpart, hence being referred as unidentified/unassociated gamma-ray…”
Get full text

Optical spectroscopic observations of gamma-ray blazar candidates VIII: the 2016–2017 follow up campaign carried out at SPM, NOT, KPNO and SOAR telescopes by Marchesini, E. J., Peña-Herazo, H. A., Álvarez Crespo, N., Ricci, F., Negro, M., Milisavljevic, D., Massaro, F., Masetti, N., Landoni, M., Chavushyan, V., D’Abrusco, R., Jiménez-Bailón, E., La Franca, F., Paggi, A., Smith, H. A., Tosti, G.

“…The third Fermi source catalog lists 3033 γ -ray sources above 4 σ significance. More than 30% are classified as either unidentified/unassociated Gamma-ray…”
Get full text

Optical spectroscopic observations of gamma-ray blazar candidates. VII. Follow-up campaign in the southern hemisphere by Peña-Herazo, H. A., Marchesini, E. J., Álvarez Crespo, N., Ricci, F., Massaro, F., Chavushyan, V., Landoni, M., Strader, J., Chomiuk, L., Cheung, C. C., Masetti, N., Jiménez-Bailón, E., D’Abrusco, R., Paggi, A., Milisavljevic, D., La Franca, F., Smith, H. A., Tosti, G.

“…Searching for low energy counterparts of γ -rays sources is one of the major challenges in modern γ -ray astronomy. In the third Fermi source catalog about 30%…”
Get full text

Optical spectroscopic observations of gamma-ray blazar candidates. X. Results from the 2018–2019 SOAR and OAN-SPM observations of blazar candidates of uncertain type by de Menezes, R., Amaya-Almazán, R. A., Marchesini, E. J., Peña-Herazo, H. A., Massaro, F., Chavushyan, V., Paggi, A., Landoni, M., Masetti, N., Ricci, F., D’Abrusco, R., La Franca, F., Smith, Howard A., Milisavljevic, D., Tosti, G., Jiménez-Bailón, E., Cheung, C. C.

“…The fourth Fermi Large Area Telescope Source Catalog (4FGL) lists over 5000 γ -ray sources with statistical significance above 4 σ . About 23% of the sources…”
Get full text

The ground calibration of the HERMES-Pathfinder payload flight models by Dilillo, G., Marchesini, E. J., Baroni, G., Della Casa, G., Campana, R., Evangelista, Y., Guzmán, A., Hedderman, P., Bellutti, P., Bertuccio, G., Ceraudo, F., Citossi, M., Cirrincione, D., Dedolli, I., Demenev, E., Feroci, M., Ficorella, F., Fiorini, M., Gandola, M., Grassi, M., Rosa, G. La, Lombardi, G., Malcovati, P., Mele, F., Nogara, P., Nuti, A., Perri, M., Pliego-Caballero, S., Pirrotta, S., Puccetti, S., Rashevskaya, I., Russo, F., Sottile, G., Tenzer, C., Trenti, M., Trevisan, S., Vacchi, A., Zampa, G., Zampa, N., Fiore, F.

“…HERMES-Pathfinder is a space-borne mission based on a constellation of six nano-satellites flying in a low-Earth orbit. The 3U CubeSats, to be launched in…”
Get full text

Optical spectroscopic classification of 35 hard X-ray sources from the Swift-BAT 70-month catalogue by Marchesini, E. J., Masetti, N., Palazzi, E., Chavushyan, V., Jiménez-Bailón, E., Patiño-Álvarez, V. M., Reynaldi, V., Rojas, A. F., Saviane, I., Andruchow, I., Bassani, L., Bazzano, A., Bird, A. J., Malizia, A., Minniti, D., Monaco, L., Stephen, J. B., Ubertini, P.

“…The nature of a substantial percentage (about one fifth) of hard X-ray sources discovered with the BAT instrument onboard the Neil Gehrels Swift Observatory…”
Get full text

Measurement of the non-linearity in the gamma-ray response of the GAGG:Ce inorganic scintillator by Campana, R, Evola, C, Labanti, C, Ferro, L, Moita, M, Virgilli, E, Marchesini, E. J, Frontera, F, Rosati, P

“…Nuclear Inst. and Methods in Physics Research, A 1056 (2023) 168587 A characteristic of every inorganic scintillator crystal is its light yield, i.e., the…”
Get full text

The HERMES Calibration Pipeline: mescal by Dilillo, G, Marchesini, E. J, Della Casa, G, Baroni, G, Campana, R, Borciani, E, Srivastava, S, Trevisan, S, Ceraudo, F, Citossi, M, Evangelista, Y, Guzmán, A, Hedderman, P, Labanti, C, Virgilli, E, Fiore, F

“…The HERMES Technologic and Scientific Pathfinder project is a constellation of six CubeSats aiming to observe transient high-energy events such as the Gamma…”
Get full text

Design and development of the HERMES Pathfinder payloads by Campana, R, Evangelista, Y, Fiore, F, Guzman, A, Baroni, G, Della Casa, G, Dilillo, G, Hedderman, P, Marchesini, E. J, Bertuccio, G, Ceraudo, F, Demenev, E, Fiorini, M, Grassi, M, Malcovati, P, Mele, F, Nogara, P, Nuti, A, Perri, M, Pirrotta, S, Pliego-Caballero, S, Puccetti, S, Sottile, G, Russo, F, Trevisan, S

“…Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130936F (2024) HERMES (High Energy Rapid Modular Ensemble of…”
Get full text

Calibration of the first detector flight models for the HERMES constellation and the SpIRIT mission by Campana, R, Baroni, G, Della Casa, G, Dilillo, G, Marchesini, E. J, Ceraudo, F, Guzman, A, Hedderman, P, Evangelista, Y

“…Proc. of SPIE vol. 12181, 121815K-1 (2022) HERMES (High Energy Rapid Modular Ensemble of Satellites) is a space-borne mission based on a constellation of six…”
Get full text

Optical monitoring in southern blazars. Analysis of variability and spectral colour behaviours by Zibecchi, L, Andruchow, I, Marchesini, E J, Cellone, S A, Combi, J A

“…Abstract We present the results of the optical monitoring of 18 southern blazars in the V and R Johnson-Cousins bands. Our main objective is to study the…”
Get full text

HERMES: Gamma Ray Burst and Gravitational Wave counterpart hunter by Ghirlanda, G, Nava, L, Salafia, O, Fiore, F, Campana, R, Salvaterra, R, Sanna, A, Leone, W, Evangelista, Y, Dilillo, G, Puccetti, S, Santangelo, A, Trenti, M, Guzmán, A, Hedderman, P, Amelino-Camelia, G, Barbera, M, Baroni, G, Bechini, M, Bellutti, P, Bertuccio, G, Borghi, G, Brandonisio, A, Burderi, L, Cabras, C, Chen, T, Citossi, M, Colagrossi, A, Crupi, R, De Cecio, F, Dedolli, I, Del Santo, M, Demenev, E, Di Salvo, T, Ficorella, F, Gačnik, D, Gandola, M, Gao, N, Gomboc, A, Grassi, M, Iaria, R, La Rosa, G, Cicero, U. Lo, Malcovati, P, Manca, A, Marchesini, E. J, Maselli, A, Mele, F, Nogara, P, Pepponi, G, Perri, M, Picciotto, A, Pirrotta, S, Prinetto, J, Quirino, M, Riggio, A, Řípa, J, Russo, F, Selčan, D, Silvestrini, S, Sottile, G, Thomas, M. L, Tiberia, A, Trevisan, S, Troisi, I, Tsvetkova, A, Vacchi, A, Werner, N, Zanotti, G, Zorzi, N

“…A&A 689, A175 (2024) Gamma Ray Bursts (GRBs) bridge relativistic astrophysics and multi-messenger astronomy. Space-based gamma/X-ray wide field detectors have…”
Get full text

Disentangling the nature of the prototype radio weak BL Lac: Contemporaneous multifrequency observations of WISE J141046.00 + 740511.2 by Marchesini, E. J, Reynaldi, V, Vieyro, F, Saponara, J, Andruchow, I, López, I. E, Benaglia, P, Cellone, S. A, Masetti, N, Massaro, F, Peña-Herazo, H. A, Chavushyan, V, Combi, J. A, Acosta-Pulido, J. A, González, B. Agís, Castro-Segura, N

“…A&A 670, A91 (2023) Context. The gamma-ray emitting source WISE J141046.00+740511.2 has been associated with a Fermi-LAT detection by crossmatching with…”
Get full text

Optical spectroscopic observations of gamma-ray blazar candidates. IX. Optical archival spectra and further observations from SOAR and OAGH by Peña-Herazo, H. A, Massaro, F, Chavushyan, V, Marchesini, E. J, Paggi, A, Landoni, M, Masetti, N, Ricci, F, D'Abrusco, R, Milisavljevic, D, Jiménez-Bailón, E, La Franca, F, Smith, Howard A, Tosti, G

“…Ap&SS 364 85P (2019) Nearly one-third of the sources in the $Fermi$-LAT catalogs lack a lower energy counterpart, hence being referred as…”
Get full text

Optical spectroscopic classification of 35 hard X-ray sources from the Swift-BAT 70-month catalogue by Marchesini, E. J, Masetti, N, Palazzi, E, Chavushyan, V, Jiménez-Bailón, E, Patiño-Alvarez, V. M, Reynaldi, V, Rojas, A. F, Saviane, I, Andruchow, I, Bassani, L, Bazzano, A, Bird, A. J, Malizia, A, Minniti, D, Monaco, L, Stephen, J. B, Ubertini, P

“…Astrophysics and Space Science, Volume 364, Issue 9, article id. 153, 33 pp. Pub Date: September 2019 The nature of a substantial percentage (about one fifth)…”
Get full text

Optical spectroscopic observations of low-energy counterparts of Fermi-LAT gamma-ray sources by Peña-Herazo, H. A, Amaya-Almazán, R. A, Massaro, F, de Menezes, R, Marchesini, E. J, Chavushyan, V, Paggi, A, Landoni, M, Ricci, F, Masetti, N, D'Abrusco, R, Cheung, C. C, La Franca, F, Smith, H. A, Milisavljevic, D, Jiménez-Bailón, E, Patiño-Álvarez, V. M, Tosti, G

“…A&A 643, A103 (2020) A significant fraction of all $\gamma$-ray sources detected by the Large Area Telescope aboard the \fer\ satellite is still lacking a…”
Get full text

The HERMES calibration pipeline: mescal by Dilillo, G., Marchesini, E.J., Della Casa, G., Baroni, G., Campana, R., Borciani, E., Srivastava, S., Trevisan, S., Ceraudo, F., Citossi, M., Evangelista, Y., Guzmán, A., Hedderman, P., Labanti, C., Virgilli, E., Fiore, F.

“…The HERMES Technologic and Scientific Pathfinder project is a constellation of six CubeSats aiming to observe transient high-energy events such as the Gamma…”
Get full text

Looking for blazars in a sample of unidentified high-energy emitting Fermi sources by Marchesini, E. J, Masetti, N, Chavushyan, V, Cellone, S. A, Andruchow, I, Bassani, L, Bazzano, A, Jiménez-Bailón, E, Landi, R, Malizia, A, Palazzi, E, Patiño-Álvarez, V, Rodríguez-Castillo, G. A, Stephen, J. B, Ubertini, P

“…A&A 596, A10 (2016) Context. Based on their overwhelming dominance among associated Fermi gamma ray catalogue sources, it is expected that a large fraction of…”
Get full text

Optical flux behaviour of a sample of Fermi blazars by Marchesini, E. J, Andruchow, I, Cellone, S. A, Combi, J. A, Zibecchi, L, Martí, J, Romero, G. E, Muñoz-Arjonilla, A. J, Luque-Escamilla, P, Sánchez-Sutil, J. R

“…A&A 591, A21 (2016) Aims: We aim at investigating the time-behaviour of a sample of gamma-ray blazars. We present the results from a 13 month-long optical…”
Get full text