Results 41 to 50 of about 261 (139)

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

RETRACTED: Can the chemical industry solve the climate change?On the role of human energy production, renewable energies, and the potential of chemistry as a solution provider

Chemie Ingenieur Technik, Volume 98, Issue 3, Page 98-105, March 2026.
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley   +1 more source

The Phase Structure of the ISM in Galaxies [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractDiffuse gas in the Galaxy is observed to exist as cold (T ~ 100 K) neutral atomic gas (CNM) and warm neutral atomic (T ~ 8000 K) gas (WNM). In addition to these “thermal” phases, gas can also exist as warm (T ~ 8000 K) ionized gas, cold (T ~ 10 K) molecular gas and in warm (T ~ 100 - 500 K) interface regions or Photodissociation Regions (PDRs ...
openaire   +1 more source

Simulations and modelling of the ISM in galaxies

, 2012
The latest observations of molecular gas and the atomic hydrogen content of local and high-redshift galaxies, coupled with how these correlate with star formation activity, have revolutionized our ideas about how to model star formation in a galactic context.
Lagos, Claudia del P., Lacey, Cedric G., Baugh, Carlton M.   +2 more
openaire   +2 more sources

Star formation and the ISM in infrared bright galaxies - SHINING

EAS Publications Series, 2011
The Herschel Key Project SHINING performs a study of the ISM in star forming and active infrared bright galaxies (starbursts, AGN, (U)LIRGs, interacting and low metallicity galaxies) at local and intermediate redshifts. Here we present some surprising and promising first results from parts of this programme, including spatially resolved PDR diagnostics,
Sturm, E., Poglitsch, A., Contursi, A., Graciá-Carpio, J., Fischer, J., González-Alfonso, E., Genzel, R., Hailey-Dunsheath, S., Lutz, D., Tacconi, L., De Jong, J., Sternberg, A., Verma, A., Madden, S., Vigroux, L., Cormier, D., Klaas, U., Nielbock, M., Krause, O., Schreiber, J., Haas, M.   +20 more
openaire   +2 more sources

Discussion On Sect. " Ism Physics And Chemistry In Our Galaxy And In Nearby Galaxies" And Sect. "Evolution Of Galaxies And Of Their Ism."

, 2018
Discussion on Sect.1 " ISM physics and chemistry in our Galaxy and in nearby galaxies" and Sect. 2 "Evolution of galaxies and of their ISM."
Molinari Sergio, Hunt Leslie, Brusa Marcella   +2 more
openaire   +1 more source

Star Formation and the ISM in Dwarf Galaxies

, 2000
High spatial and spectral resolution observations of the atomic interstellar medium in nearby dwarf galaxies reveal evidence for warm and cold neutral gas, just like the phases in our own Galaxy. The cold or quiescent phase (about 20% of the HI in the galaxies studied, except for LGS 3) seems to be associated with star formation activity--- it may mark
Young, L. M., van Zee, L., Dohm-Palmer, R. C., Lo, K. Y.   +3 more
openaire   +2 more sources

HI absorption and the ISM around radio galaxies

, 2000
We present a study, done with the Australian LBA, of HI absorption for two compact radio galaxies (PKS 1549-79 and PKS 1814-63). In both the radio galaxies, the HI appears to give us information about the environment in which the radio sources are embedded, the effect that the ISM can have on the observed characteristics and the possible presence of ...
Morganti, R., Oosterloo, T. A., Tadhunter, C. N., Wills, K. A., Tzioumis, A., Reynolds, J.   +5 more
openaire   +2 more sources

Submillimeter Array observations of ISM in starburst galaxies

, 2004
4 pages, 3 figures, to appear in "The Neutral ISM in Starburst Galaxies" (ASP Conference Series, 2003)
Sakamoto, Kazushi, Matsushita, Satoki, Peck, Alison B., Mao, Rui-Qing, Wiedner, Martina C., Iono, Daisuke, Kuo, Cheng-Yu, team, SMA   +7 more
openaire   +2 more sources

ISM Abundances in Sculptor Group Dwarf Irregular Galaxies

, 2002
Using the CTIO 4-m telescope, we have obtained optical spectra of HII regions in five Sculptor Group dwarf irregular galaxies. We derive oxygen, nitrogen, and sulfur abundances from the HII region spectra. Oxygen abundances are derived via three different methods (the ``direct'' method, the empirical method guided by photoionization modeling of McGaugh
Skillman, Evan D., Cote, Stephanie, Miller, Bryan W.   +2 more
openaire   +2 more sources