Search Publications
Searching for stellar population in the molecular cloud GRSMC 045.49+00.04
Elia, Davide; Azatyan, Naira; Nikoghosyan, Elena +5 more
Understanding the characteristics of young stellar populations is essential for deriving insights into star formation processes within parent molecular clouds and the influence of massive stars on these processes. This study primarily aims to investigate the young stellar objects (YSOs) within the molecular cloud G 045.49+00.04, including three ul…
GASKAP-HI pilot survey science I: ASKAP zoom observations of HI emission in the Small Magellanic Cloud
van Loon, J. Th.; Lee, M. -Y.; Joncas, G. +53 more
We present the most sensitive and detailed view of the neutral hydrogen ( ${H\small I}$ ) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Australian Square Kilometre Array Pathfinder (ASKAP) and Parkes (Murriyang), as part of the Galactic Australian Square Kilometre Array Pathfinder (GASKAP) pilo…
Infrared study of the star-forming region associated with the UC HII regions G45.07+0.13 and G45.12+0.13
Azatyan, N.; Nikoghosyan, E.; Harutyunian, H. +2 more
Ultra-compact H II (UC HII) regions are an important phase in the formation and early evolution of massive stars and a key component of the interstellar medium (ISM). The main objectives of this work are to study the young stellar population associated with the G45.07+0.13 and G45.12+0.13 UC HII regions, as well as the ISM in which they are embedd…
The formation of planetary systems with SPICA
Waters, L. B. F. M.; Kamp, I.; Wolf, S. +37 more
In this era of spatially resolved observations of planet-forming disks with Atacama Large Millimeter Array (ALMA) and large ground-based telescopes such as the Very Large Telescope (VLT), Keck, and Subaru, we still lack statistically relevant information on the quantity and composition of the material that is building the planets, such as the tota…
Mid-IR cosmological spectrophotometric surveys from space: Measuring AGN and star formation at the cosmic noon with a SPICA-like mission
Bisigello, Laura; Kohno, Kotaro; Alonso-Herrero, Almudena +31 more
We use the SPace Infrared telescope for Cosmology and Astrophysics (SPICA) project as a template to demonstrate how deep spectrophotometric surveys covering large cosmological volumes over extended fields (1–$15\, \rm{deg^2}$) with a mid-IR imaging spectrometer (17–$36\, \rm{\rm{\upmu m}}$) in conjunction with deep$70\, \rm{\rm{\upmu m}}$photometr…
The nature and likely redshift of GLEAM J0917-0012
Lehnert, Matthew D.; Stern, Daniel; De Breuck, Carlos +10 more
We previously reported a putative detection of a radio galaxy at $z=10.15$ , selected from the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey. The redshift of this source, GLEAM J0917-0012, was based on three weakly detected molecular emission lines observed with the Atacama Large Millimetre Array (ALMA). In order to c…
The role of SPICA-like missions and the Origins Space Telescope in the quest for heavily obscured AGN and synergies with Athena
Pozzi, F.; Rodighiero, G.; Feltre, A. +21 more
In the black hole (BH)-galaxy co-evolution framework, most of the star formation (SF) and the BH accretion are expected to take place in highly obscured conditions. The large amount of gas and dust absorbs most of the UV-to-soft-X radiation and re-emits it at longer wavelengths, mostly in the IR. Thus, obscured active galactic nuclei (AGN) are ver…
Simulating infrared spectro-photometric surveys with a SPRITZ
Pozzi, F.; Rodighiero, G.; Schaerer, D. +19 more
Mid- and far-infrared (IR) photometric and spectroscopic observations are fundamental to a full understanding of the dust-obscured Universe and the evolution of both star formation and black hole accretion in galaxies. In this work, using the specifications of the SPace Infrared telescope for Cosmology and Astrophysics (SPICA) as a baseline, we in…
PKS 2250-351: A giant radio galaxy in Abell 3936
Seymour, N.; Leahy, D. A.; Norris, R. P. +27 more
We present a detailed analysis of the radio galaxy PKS $2250{-}351$ , a giant of 1.2 Mpc projected size, its host galaxy, and its environment. We use radio data from the Murchison Widefield Array, the upgraded Giant Metre-wavelength Radio Telescope, the Australian Square Kilometre Array Pathfinder, and the Australia Telescope Compact Array to mode…