python-如何获得数组中的10个最小数？

这是我的代码：

from astropy.io import fits
import pandas
import matplotlib.pyplot as plt
import numpy as np
import heapq 

datos = fits.open('/home/citlali/Descargas/Lista.fits')
data = datos[1].data

#Linea [SIII] 9532
Mask_1 = data['flux_[SIII]9531.1_Re_fit'] / data['e_flux_[SIII]9531.1_Re_fit'] > 5
newdata1 = data[Mask_1]

H1_alpha = newdata1['log_NII_Ha_Re']

H1_beta = newdata1['log_OIII_Hb_Re']

M = H1_alpha < -0.9

newx = H1_alpha[M] #This is my array where I need the smallest 10 numbers
newy = H1_beta[M]  

sm = heapq.nsmallest(10, newx)

plt.plot(sm, newy, 'ro')  

我想要10个最小的newx数字，但我还需要“；“y”；这个数字的值（newy）和idk如何获取它们。谢谢