spiral galaxies
Tully-Fisher distance measurements of spiral galaxies with well-observed type Ia supernovae
... inclined spiral galaxies in the local ...host galaxies at large ...host galaxies, thereby allowing a much better cross-comparison of the two methods than previously ...
203
Dust energy balance study of two edge on spiral galaxies in the Herschel ATLAS survey
... edge-on spiral galaxies. For both galaxies, IC 4225 and NGC 5166, the observed SED shows a clear FIR excess compared to a standard model that is based only on optical images, and hence only contains ...
12
The onset of large scale turbulence in the interstellar medium of spiral galaxies
... in spiral galaxies, and on the formation of giant molecular ...the spiral pattern, was present even without cloud–cloud collisional ...the spiral patterns, have been observed in numer- ical ...
17
Study of the stellar population properties in the discs of ten spiral galaxies
... We investigated the properties of the stellar populations in the discs of a sample of 10 spiral galaxies. Our analysis focused on the galaxy region where the disc contributes more than 95 per cent of total ...
12
Galaxy Zoo:Unwinding the Winding Problem Observations of Spiral Bulge Prominence and Arm Pitch Angles Suggest Local Spiral Galaxies are Winding
... in spiral galaxies. Whilst the traditional spiral sequence is based on a combination of both measures, and is supposed to favour arm winding where disagreement exists, we demonstrate that, in modern ...
16
Shape of the oxygen abundance profiles in CALIFA face on spiral galaxies
... These two demarcation lines have a di ff erent origin. The Kewley et al. (2001) curve was derived theoretically using pho- toionisation models and corresponds to the maximum enve- lope for ionisation produced by OB ...
21
The density profiles of dark matter halos in spiral galaxies
... In this paper, we investigate whether these two appa- rently different results are compatible. We also use the outcome to derive important information on the DM dis- tribution in spirals. We will study an independent ...
6
The role of large scale flows in molecular cloud formation in spiral galaxies
... of spiral galaxies exist in the literature and it is not straightforward to do a direct comparison because of the different parameters used both for N -body and spiral potential ...
252
Disc colours in field and cluster spiral galaxies at 0 5 ≲z≲ 0 8
... 172 spiral galaxies, and our control sample is composed of 96 field disc ...cluster spiral galaxies have disc V − I colours redder by more than 1σ of the mean colours of their field ...of ...
13
A Unified Electro-Gravity Theory to Model Spiral Galaxies without Dark Matter
... of spiral galaxies [1] have been sus- pected not to confirm to gravitational forces due to galax- ies’ visible mass as per the Newton’s Law of gravitation, which is known to work well in our day-to-day ...
11
Mora, Marcelo D. (2008): Star clusters in unperturbed spiral galaxies. Dissertation, LMU München: Fakultät für Physik
... elliptical galaxies (for a recent compre- hensive study on this kind of galaxies see the ACS Virgo Cluster Survey, C ˆot´e et ...elliptical galaxies (showed first by Zepf & Ashman ...in ...
135
Multiple mechanisms quench passive spiral galaxies
... satellite galaxies in groups in the Bonne et ...T-type<1 galaxies without discernible spiral ...group, spiral galaxies that have their star for- mation quenched via environmental ...
13
The Adiabatic Invariant of Dark Matter in Spiral Galaxies
... Collisionless dark matter can only expand adiabatically. To test this idea and constrain the properties of dark matter, we study spiral galaxies in the “Spitzer Photometry and Accurate Rotation Curves” ...
13
Kotarba, Hanna (2011): Magnetic Field Evolution in Isolated and Interacting Spiral Galaxies. Dissertation, LMU München: Fakultät für Physik
... elliptical galaxies could also be a consequence of the magnetization of the progenitor galaxies, whereby the ordered magnetic fields of the progenitors (assumed to be disk galaxies) got tangled during ...
173
Galaxy And Mass Assembly (GAMA): gas fuelling of spiral galaxies in the local Universe II. - direct measurement of the dependencies on redshift and host halo mass of stellar mass growth in central disc galaxies
... disk galaxies; for satel- lite galaxies inflows are predicted to be curtailed by the stripping of cold and cooling gas resulting from the motion of the galaxy with respect to the host DMH (Gunn & Gott ...
23
Immler, Stefan (2000): The X-Ray Source Population of Nearby Spiral Galaxies. Dissertation, LMU München: Fakultät für Physik
... ®5BW® Ýïw.. ,° 780 BmBYBuBYBuBYBYBuBYBuBYBmBYBYBuBYBuBYBuBYBuBYBYBmBYBuBYBèv+c[r] ...
165
The DiskMass Survey. VI. Gas and stellar kinematics in spiral galaxies from PPak integral-field spectroscopy
... The kinematics of the ionized gas in our target galaxies is derived by fitting the [O iii ]λ5007 Å emission-line profile us- ing software developed by Andersen et al. (2006, 2008). We fit both single- and ...
60
Galaxy Zoo Builder: Four-component Photometric Decomposition of Spiral Galaxies Guided by Citizen Science
... 1,123,718 galaxies in the Legacy area of the SDSS DR7 using Gim2D ...main-sample galaxies: an exponential disc and exponential bulge (exp+exp), and an exponential disc and de Vaucouleurs ...
25
Dark matter in spiral galaxies
... Thus, without making any assumptions about the existence or otherwise of dark m atter, there are clear trends emerging already. Small, faint, less dense systems are badly fitted with model rotation curves. Larger, ...
397
The formation of molecular clouds in spiral galaxies
... The simulations described in this thesis use the Smoothed Particle Hydrodynamics method (SPH). SPH is a 3D Lagrangian hydrodynamics code that has been successfully applied to a variety of astrophysical problems. An ...
142