Spectral lines from formaldehyde (H2CO) molecules at cm wavelengths are typically detected in absorption and trace a broad range of environments, diffuse gas to giant molecular clouds. In contrast, thermal emission is rare. previous observations with the 100m Robert C. Byrd Green Bank Telescope (GBT), we 2 toward NGC7538 IRS1 - high-mass protostellar object prominent star-forming region our Gal...

It has long been known that the tension of CO, in arterial blood is approximately the same as that of the alveolar air. Thus, by obtaining samples of alveolar air, one can readily calculate the CO2 tension in the blood and, by usinig Bohr's coefficient, arrive at the figure for the free CO, content (H2CO ,). The total CO2 contenlt less this figure will then represent the combined CO2 (BHCO3) of...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Rotationally resolved photoelectron spectra can provide significant insight into the underlying dynamics of molecular photoionization. Here, we discuss and compare results of recent theoretical studies of rotationally resolved photoelectron spectra with measurements for molecules such as HBr, OH, NO, N2, CO, H20, H2CO, and CH3. These studies reveal the rich dynamics of quantum-state-specific st...

Here we report synthesis and characterization of early transition-metal(TM)-substituted decaniobates as a continuation of our previous report of tetramethylammonium (TMA) salt of FeNb9 and NiNb9: TMA6[H2Cr(III)Nb9O28]·14H2O (1, CrNb9), TMA8[Mn(III)Nb9O28]·29H2O (2, MnNb9) and TMA7[H2Co(II)Nb9O28]·25H2O (3, CoNb9). Among the TM-substituted decaniobates, CoNb9 or NiNb9 exhibit a higher photocatal...

We aim to directly trace the vertical location of emitting surface multiple molecular tracers in protoplanetary disks. Our sample disks includes Elias 2-27, WaOph 6 and sources targeted by MAPS ALMA Large Program. The set molecules studied include CO isotopologues various transitions, HCN, CN, H2CO, HCO+, C2H c-C3H2. region is determined from channel maps, implementing accurate masking emission...