Dust extinction and stellar confusion by the Milky Way reduce the efficiency of detecting galaxies at low Galactic latitudes, creating the so-called Zone of Avoidance. This stands as a stumbling block in charting the distribution of galaxies and cosmic flow fields, and therewith our understanding of the local dynamics in the Universe (CMB dipole, convergence radius of bulk flows). For instance, ZoA galaxies are generally excluded from the whole-sky Tully-Fisher Surveys ($|b| \leq 5^\circ$) even if catalogued. We show here that by fine-tuning the near-infrared TF relation, there is no reason not to extend peculiar velocity surveys deeper into the ZoA. Accurate axial ratios ($b/a$) are crucial to both the TF sample selection and the resulting TF distances. We simulate the effect of dust extinction on the geometrical properties of galaxies. As expected, galaxies appear rounder with increasing obscuration level, even affecting existing TF samples. We derive correction models and demonstrate that we can reliably reproduce the intrinsic axial ratio from the observed value up to extinction level of about $A_J\simeq3$ mag ($A_V\sim11$ mag), we also recover a fair fraction of galaxies that otherwise would fall out of an uncorrected inclination limited galaxy sample. We present a re-calibration of the 2MTF relation in the NIR $J$, $H$, and $K_s$-bands for isophotal rather than total magnitudes, using their same calibration sample. Both TF relations exhibit similar scatter at high Galactic latitudes. However, the isophotal TF relation results in a significant improvement in the scatter for galaxies in the ZoA, and low surface brightness galaxies in general, because isophotal apertures are more robust in the face of significant stellar confusion.

翻译：银河系的尘埃和星状混乱导致银河系在低银河纬度地区探测星系的效率降低,创造了所谓的避免区。这在绘制星系和宇宙流场分布图方面是一个绊脚石块,因此我们对宇宙中当地动态(CMB dipole,散流的汇合半径)的理解非常关键。例如,即使进行了编目,ZoA星系也普遍被排除在全天空Tully-Fisher调查之外( ⁇ b ⁇ leq 5 ⁇ circ$ ) 。我们在这里表明,通过微调近红红外TF的关系,我们没有理由不将奇异的速度调查更深入到ZoA。 精确的轴比(b/a)对于TF样本的选择和由此形成的TF距离都至关重要。我们模拟尘埃对于星系的地貌特性的影响是相同的。我们所看到的是修正模型,并且可以可靠地复制其内基值值的美元的内值。