Detection of the thermal radio continuum emission from the G 9 . 62 + 0 . 19 - F Hot Core
نویسندگان
چکیده
We present new high resolution and high sensitivity multi-frequency VLA radio continuum observations of the G9.62+0.19-F hot molecular core. We detect for the first time faint centimetric radio continuum emission at the position of the core. The centimetric continuum spectrum of the source is consistent with thermal emission from ionised gas. This is the first direct evidence that a newly born massive star is powering the G9.62+0.19-F hot core.
منابع مشابه
Letter to the Editor Detection of the thermal radio continuum emission from the G9.62+0.19-F Hot Core
We present new high resolution and high sensitivity multi-frequency VLA radio continuum observations of the G9.62+0.19-F hot molecular core. We detect for the first time faint centimetric radio continuum emission at the position of the core. The centimetric continuum spectrum of the source is consistent with thermal emission from ionised gas. This is the first direct evidence that a newly born ...
متن کاملATCA 1 . 2 cm Observations of the Massive Star Forming Region G 305 . 2 + 0 . 2
We report on Australia Telescope observations of the massive star forming region G305.2+0.2 at 1.2 cm. We detected emission in five molecules towards G305A, confirming its hot core nature. We determined a rotational temperature of 26K for methanol. A non-LTE excitation calculation suggests a kinematic temperature of order 200K. A time dependent chemical model is also used to model the gas phase...
متن کاملHot gas and dust in a protostellar cluster near W3(OH)
We used the IRAM Interferometer to obtain sub-arcsecond resolution observations of the high-mass star-forming region W3(OH) and its surroundings at a frequency of 220 GHz. With the improved angular resolution, we distinguish 3 peaks in the thermal dust continuum emission originating from the hot core region ≈ 6 (0.06 pc) east of W3(OH). The dust emission peaks are coincident with known radio co...
متن کاملar X iv : a st ro - p h / 98 11 21 2 v 2 9 F eb 1 99 9 Detection of Iron Emission Line from the Galaxy Cluster Including the Distant Radio Galaxy
We detected an emission line feature at 4 keV in the X-ray spectrum of a sky region including the distant radio galaxy 3C220.1(z = 0.62) obtained with ASCA. The line energy is 6.1 – 7.0 keV (90% confidence) in the rest frame of 3C220.1. Within the present statistics, the observed spectra are consistent with two different models; a non-thermal model consisting of a power-law continuum plus a 6.4...
متن کاملInterstellar Extinction in the Vicinity of Galactic Center Thermal Radio Emission Regions
Broad band J, H and K 0 and spectral Br 2.166 m images have been obtained in four areas surrounding regions of thermal radio emission. Localized variations in the extinction are examined by means of color and comparison of the observed Br ux with the Br emission predicted from radio continuum data. Results show few spatial variations and little correlation with the position of the radio emissio...
متن کامل