183 GHz H2O Megamaser galaxies and intensity Calibrations

• Grant number: 17/23708-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: February 01, 2018
• End date: September 23, 2019
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
• Principal Investigator: Jacques Raymond Daniel Lépine
• Grantee: Manuel Antonio Merello Ferrada
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 11/51676-9 - LLAMA: a mm/submm radiotelescope in the Andes, in collaboration with Argentina, AP.TEM

Abstract

The aim of the present proposal is to make systematic observations of Ultra-Luminous Infrared Galaxies (ULIRGS) in the 183 GHz line of the H2O molecule, making use of the Band 5 receiver that will be available at LLAMA. The observations of maser lines and their spectral energy distribution will bring insight on the emitting sources. The masers detected in ULIRGS could be complemented by observations with ALMA. Furthermore, since these objects are probably relatively strong extragalactic sources, they are candidates to be observed with VLBI. The variability of the maser lines is of interest. This work will be complemented on the technical side by a study of the methods of calibration of line intensities and the reliability of variability measurements.

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BENEDETTINI, M.; MOLINARI, S.; BALDESCHI, A.; BELTRAN, M. T.; BRAND, J.; CESARONI, R.; ELIA, D.; FONTANI, F.; MERELLO, M.; OLMI, L.; et al. The Forgotten Quadrant Survey: (CO)-C-12 and (CO)-C-13 (1-0) survey of the Galactic plane in the range 220 degrees < l < 240 degrees-2.degrees 5 < b < 0 degrees. Astronomy & Astrophysics, v. 633, JAN 23 2020. (17/23708-0)

HERVIAS-CAIMAPO, CARLOS; MERELLO, MANUEL; BRONFMAN, LEONARDO; AKE-NYMAN, LARS; GARAY, GUIDO; LO, NADIA; EVANS, II, NEAL J.; LOPEZ-CALDERON, CRISTIAN; MENDOZA, EDGAR. ALMA Observations of the Massive Molecular Outflow G331.512-0.103. II. Physical Properties, Kinematics, and Geometry Modeling. ASTROPHYSICAL JOURNAL, v. 872, n. 2, FEB 20 2019. (17/23708-0, 14/22095-6)

MERELLO, M.; MOLINARI, S.; RYGL, K. L. J.; EVANS, II, N. J.; ELIA, D.; SCHISANO, E.; TRAFICANTE, A.; SHIRLEY, Y.; SVOBODA, B.; GOLDSMITH, P. F.. Thermal balance and comparison of gas and dust properties of dense clumps in the Hi-GAL survey. Monthly Notices of the Royal Astronomical Society, v. 483, n. 4, p. 5355-5379, MAR 2019. (17/23708-0)

BEAKLINI, PEDRO P. B.; MENDOZA, EDGAR; CANELO, CARLA M.; ALEMAN, ISABEL; MERELLO, MANUEL; KONG, SHUO; NAVARETE, FELIPE; JANOT-PACHECO, EDUARDO; ABRAHAM, ZULEMA; LEPINE, JACQUES R. D.; et al. Sulphur-bearing and complex organic molecules in an infrared cold core. Monthly Notices of the Royal Astronomical Society, v. 491, n. 1, p. 427-439, JAN 2020. (17/23708-0, 17/18191-8, 14/22095-6, 14/07460-0, 09/54006-4)

JONES, B. M.; FULLER, G. A.; BREEN, S. L.; AVISON, A.; GREEN, J. A.; TRAFICANTE, A.; ELIA, D.; ELLINGSEN, S. P.; VORONKOV, M. A.; MERELLO, M.; et al. The evolutionary status of protostellar clumps hosting class II methanol masers. Monthly Notices of the Royal Astronomical Society, v. 493, n. 2, p. 2015-2041, APR 2020. (17/23708-0)