TY - JOUR

T1 - Mirages in galaxy scaling relations

AU - Mosenkov, A.V.

AU - Sotnikova, N.Y.

AU - Reshetnikov, V.P.

PY - 2014

Y1 - 2014

N2 - We analysed several basic correlations between structural parameters of galaxies. The data were taken from various samples in different passbands which are available in the literature. We discuss disc scaling relations as well as some debatable issues concerning the so-called Photometric Plane for bulges and elliptical galaxies in different forms and various versions of the famous Kormendy relation. We show that some of the correlations under discussion are artificial (self-correlations), while others truly reveal some new essential details of the structural properties of galaxies. Our main results are as follows: At present, we cannot conclude that faint stellar discs are, on average, more thin than discs in high surface brightness galaxies. The `central surface brightness-thickness' correlation appears only as a consequence of the transparent exponential disc model to describe real galaxy discs.The Photometric Plane appears to have no independent physical sense. Various forms of this plane are merely sophis

AB - We analysed several basic correlations between structural parameters of galaxies. The data were taken from various samples in different passbands which are available in the literature. We discuss disc scaling relations as well as some debatable issues concerning the so-called Photometric Plane for bulges and elliptical galaxies in different forms and various versions of the famous Kormendy relation. We show that some of the correlations under discussion are artificial (self-correlations), while others truly reveal some new essential details of the structural properties of galaxies. Our main results are as follows: At present, we cannot conclude that faint stellar discs are, on average, more thin than discs in high surface brightness galaxies. The `central surface brightness-thickness' correlation appears only as a consequence of the transparent exponential disc model to describe real galaxy discs.The Photometric Plane appears to have no independent physical sense. Various forms of this plane are merely sophis

KW - galaxies: kinematics and dynamics

KW - galaxies: structure

U2 - 10.1093/mnras/stu602

DO - 10.1093/mnras/stu602

M3 - Article

VL - 441

SP - 1066

EP - 1085

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -