Search Publications
Herschel water maps towards the vicinity of the black hole Sgr A*
Martín-Pintado, J.; Harris, A. I.; van der Werf, P. +8 more
Aims: We study the spatial distribution and kinematics of water emission in a 8 × 8 pc2 region of the Galactic center (GC) that covers the main molecular features around the supermassive black hole Sagittarius A* (Sgr A*). We also analyze the water excitation to derive the physical conditions and water abundan…
Warm CO in evolved stars from the THROES catalogue. II. Herschel/PACS spectroscopy of C-rich envelopes
García-Lario, P.; Sánchez Contreras, C.; da Silva Santos, J. M. +1 more
Context. This is the second paper of a series making use of Herschel/PACS spectroscopy of evolved stars in the THROES catalogue to study the inner warm regions of their circumstellar envelopes (CSEs).
Aims: We analyse the CO emission spectra, including a large number of high-J CO lines (from J = 14-13 to J = 45-44, ν = 0), as a proxy for the …
Concerning the occurrence of bow shocks around high-mass X-ray binaries
Prišegen, M.
Context. We investigate the occurrence of stellar bow shocks around high-mass X-ray binaries (HMXBs) in the Galaxy.
Aims: We seek to conduct a survey of HMXBs in the mid-infrared to search for the presence of bow shocks around these objects.
Methods: Telescopes operating in the mid-infrared, such as the Spitzer Space Telescope or Wide-fi…
Infrared and sub-mm observations of outbursting young stars with Herschel and Spitzer
Rab, C.; Audard, M.; Güdel, M. +3 more
Context. Episodic accretion plays an important role in the evolution of young stars. Although it has been under investigation for a long time, the origin of such episodic accretion events is not yet understood.
Aims: We investigate the dust and gas emission of a sample of young outbursting sources in the infrared to get a better understanding…
Unveiling the enigma of ATLAS17aeu
Covino, S.; D'Avanzo, P.; Campana, S. +42 more
Aims: The unusual transient ATLAS17aeu was serendipitously detected within the sky localisation of the gravitational wave trigger GW 170104. The importance of a possible association with gravitational waves coming from a binary black hole merger led to an extensive follow-up campaign, with the aim of assessing a possible connection with GW 17…
Searching for further evidence for cloud-cloud collisions in L1188
Menten, K. M.; Lee, M. -Y.; Wang, Y. +9 more
In order to search for further observational evidence of cloud-cloud collisions in one of the promising candidates, L1188, we carried out observations of multiple molecular lines toward the intersection region of the two nearly orthogonal filamentary molecular clouds in L1188. Based on these observations, we find two parallel filamentary structure…
Revealing the nature of central emission nebulae in the dwarf galaxy NGC 185
Ilić, D.; Vučetić, M. M.; Onić, D. +6 more
Aims: In this paper we present new optical observations of the galaxy NGC 185 intended to reveal the status of supernova remnants (SNRs) in this dwarf companion of the Andromeda galaxy. Previously, it was reported that this galaxy hosts one SNR.
Methods: Our deep photometric study with the 2m telescope at Rozhen National Astronomical Obs…
Murchison Widefield Array and XMM-Newton observations of the Galactic supernova remnant G5.9+3.1
Haberl, F.; Callingham, J. R.; Filipović, M. D. +27 more
Aims: In this paper we discuss the radio continuum and X-ray properties of the so-far poorly studied Galactic supernova remnant (SNR) G5.9 + 3.1.
Methods: We present the radio spectral energy distribution (SED) of the Galactic SNR G5.9 + 3.1 obtained with the Murchison Widefield Array (MWA). Combining these new observations with the surv…
Link between trees of fragmenting granules and deep downflows in MHD simulation
Malherbe, J. M.; Roudier, T.; Frank, Z. +1 more
Context. Trees of fragmenting granules (TFG) and associated flows are suspected to play a major role in the formation of the network in the quiet Sun. We investigate the counterparts, in terms of dynamics, of surface structures detectable by high resolution observations in deeper layers up to 15 Mm, which are only available from numerical simulati…
Absolute dimensions of the low-mass eclipsing binary system NSVS 10653195
Torres, Guillermo; López-Morales, Mercedes; Coughlin, Jeffrey L. +3 more
Context. Low-mass stars in eclipsing binary systems show radii larger and effective temperatures lower than theoretical stellar models predict for isolated stars with the same masses. Eclipsing binaries with low-mass components are hard to find due to their low luminosity. As a consequence, the analysis of the known low-mass eclipsing systems is k…